听风识雨发表的帖子

听风识雨 · » 2021-07-27 08:59:26

https://www.pdf2go.com/zh/edit-pdf

听风识雨 · 司徒开源

伍零壹说：

@司徒
司徒大佬不用上班么

司徒良田千亩，别墅靠海，为什么要上班?

听风识雨 · » 2021-04-26 10:17:23

https://urchinzhou.github.io/2021/03/05/关于xlog加密处理分析/

关于 xlog 加密处理分析 2021-03
信息安全

xlog 使用微型加密算法（TEA，Tiny Encryption Algorithm）对日志数据进行加密，使用 ECDH 密钥交换算法进行对称密钥的协商，对称密钥以数组形式存储在栈区，声明为 LogCrypt 类的私有字段。

会话密钥长度与椭圆曲线参数相关，xlog 中使用 16 Bytes 密钥。

相关接口
uECC_make_key ( client_pubkey, client_pri )
生成客户端公私钥对
uECC_shared_secret ( svr_pubkey, client_pri, secret )
根据服务端公钥与客户端私钥，运算出对称密钥 secret
__TeaEncrypt ( log, secret )
使用对称密钥加密日志
协商流程：
client 调用 uECC_make_key 生成 pubKeyA 与 priKeyA；
server 调用 uECC_make_key 生成 pubKeyB 与 priKeyB；
client 获取server 公钥 pubKeyB ，调用 uECC_shared_secret 生成对称密钥 secret；（此处采用 ECDH 密钥交换算法）
server 获取client 公钥 pubKeyA ，调用 uECC_shared_secret 生成对称密钥 secret；
ECDH 密钥交换算法原理概述
ECDH 基于 ECC 算法，ECC 是建立在基于椭圆曲线的离散对数问题上的密码体制，给定椭圆曲线上的一个点 P，一个整数 k，求解 Q = kP 很容易，但给定一个点 P、一个点Q，求解 k 很难。ECDH 便建立在该数学难题上。

假设密钥协商的双方 Alice 和 Bob 共享公共参数 p、g 以及 ECDH 算法，以下场景可模拟交换流程（mod 表示取余运算）：

Alice 生成私钥 a，通过公式 g^a mod p = A 生成公钥 A，并将 p、g、A 发送给 Bob；
Bob 获得 p、g、A 后，生成自己的私钥 b，通过g^b mod p = B 生成公钥B，通过公式 A^B mod p = K 生成会话密钥（对称密钥）K，然后将公钥 B 发送给 Alice；
Alice 获得 Bob 的公钥 B，通过 B^a mod p = K 生成会话密钥 K，至此，Alice 和 Bob 在未传递私钥 a、b 的情况下，完成了会话密钥协商。
ECDH 不传输对称密钥，而是传输 ECC 椭圆曲线算法生成的公钥，然后通过收到的公钥结合自己的私钥，各自计算出共享的对称密钥，椭圆曲线保证了双方计算出的密钥一定是相同的，且第三方在不知道通信双方私钥的情况下，无法通过从信道中截获的信息反推出对称密钥。

代入数据：
假定 p = 23，g = 5；
Alice 生成私钥 a = 6，计算 A = g^a mod p = 5^6 mod 23 = 8；
Bob 生成私钥 b = 15，计算 B = g^b mod p = 5^15 mod 23 = 19，计算 K = A^B mod p = 8^18 mod 23 = 2；
Alice 计算 K’ = B^a mod p = 19^6 mod 23 = 2，K’ = K。

听风识雨 · VMWare/Linux/Ubuntu/Fedora/CentOS/U-BOOT

查找某目录下面所有的 .ko 文件, 并复制到 /tmp 目录:

find . | grep \\.ko$ |xargs -i cp '{}' /tmp/ -rf

听风识雨 · » 2020-12-30 22:15:00

VAN-D 说：

https://www.logaster.com/
这个也可以

谢谢, 试了一下, 这个也不错, 只是打开速度太慢了.

听风识雨 · 全志 SOC

arychen 说：

3D效果贼漂亮！

+1

听风识雨 · 全志 SOC

# modetest -M sun4i-drm -v -s 43@41:800x480
setting mode 800x480-61.58Hz on connectors 43, crtc 41
failed to set gamma: Function not implemented
freq: 61.88Hz
freq: 61.57Hz
freq: 61.58Hz
freq: 61.58Hz
freq: 61.58Hz
freq: 61.58Hz
freq: 61.58Hz
freq: 61.58Hz
freq: 61.58Hz

奇怪, 这个可以显示

后记，把drm驱动patch了一下，可以显示了:
--------------------------------------

# modetest
trying to open device 'i915'...failed
trying to open device 'amdgpu'...failed
trying to open device 'radeon'...failed
trying to open device 'nouveau'...failed
trying to open device 'vmwgfx'...failed
trying to open device 'omapdrm'...failed
trying to open device 'exynos'...failed
trying to open device 'tilcdc'...failed
trying to open device 'msm'...failed
trying to open device 'sti'...failed
trying to open device 'tegra'...failed
trying to open device 'imx-drm'...failed
trying to open device 'rockchip'...failed
trying to open device 'atmel-hlcdc'...failed
trying to open device 'fsl-dcu-drm'...failed
trying to open device 'vc4'...failed
trying to open device 'virtio_gpu'...failed
trying to open device 'mediatek'...failed
trying to open device 'meson'...failed
trying to open device 'pl111'...failed
trying to open device 'stm'...failed
trying to open device 'sun4i-drm'...done
Encoders:
id      crtc    type    possible crtcs  possible clones
44      43      none    0x00000001      0x00000000

Connectors:
id      encoder status          name            size (mm)       modes   encoders
45      44      connected       unknown-1       154x86          1       44
  modes:
        index name refresh (Hz) hdisp hss hse htot vdisp vss vse vtot)
  #0 800x480 61.58 800 840 888 928 480 493 496 525 30000 flags: ; type: preferred, driver
  props:
        1 EDID:
                flags: immutable blob
                blobs:

                value:
        2 DPMS:
                flags: enum
                enums: On=0 Standby=1 Suspend=2 Off=3
                value: 0
        5 link-status:
                flags: enum
                enums: Good=0 Bad=1
                value: 0
        6 non-desktop:
                flags: immutable range
                values: 0 1
                value: 0
        4 TILE:
                flags: immutable blob
                blobs:

                value:

CRTCs:
id      fb      pos     size
43      46      (0,0)   (800x480)
  #0 800x480 61.58 800 840 888 928 480 493 496 525 30000 flags: ; type: preferred, driver
  props:
        23 VRR_ENABLED:
                flags: range
                values: 0 1
                value: 0

Planes:
id      crtc    fb      CRTC x,y        x,y     gamma size      possible crtcs
30      0       0       0,0             0,0     0               0x00000001
  formats: BG16 BG24 BX12 BX15 BX24 RG16 RG24 RX12 RX15 RX24 XB15 XB12 XB24 XR24 XR15 XR12 NV16 NV12 NV21 NV61 UYVY VYUY YUYV YVYU YU11 YU12 YU16 YV11 YV12 YV16
  props:
        7 type:
                flags: immutable enum
                enums: Overlay=0 Primary=1 Cursor=2
                value: 0
        29 IN_FORMATS:
                flags: immutable blob
                blobs:

                value:
                        01000000000000001e00000018000000
                        00000000900000004247313642473234
                        42583132425831354258323452473136
                        52473234525831325258313552583234
                        58423135584231325842323458523234
                        58523135585231324e5631364e563132
                        4e5632314e5636315559565956595559
                        59555956595659555955313159553132
                        59553136595631315956313259563136
                in_formats blob decoded:
                         BG16:
                         BG24:
                         BX12:
                         BX15:
                         BX24:
                         RG16:
                         RG24:
                         RX12:
                         RX15:
                         RX24:
                         XB15:
                         XB12:
                         XB24:
                         XR24:
                         XR15:
                         XR12:
                         NV16:
                         NV12:
                         NV21:
                         NV61:
                         UYVY:
                         VYUY:
                         YUYV:
                         YVYU:
                         YU11:
                         YU12:
                         YU16:
                         YV11:
                         YV12:
                         YV16:
        32 alpha:
                flags: range
                values: 0 65535
                value: 65535
        33 zpos:
                flags: range
                values: 0 2
                value: 0
34      43      46      0,0             0,0     0               0x00000001
  formats: BG16 BG24 BX12 BX15 BX24 RG16 RG24 RX12 RX15 RX24 XB15 XB12 XB24 XR24 XR15 XR12 NV16 NV12 NV21 NV61 UYVY VYUY YUYV YVYU YU11 YU12 YU16 YV11 YV12 YV16
  props:
        7 type:
                flags: immutable enum
                enums: Overlay=0 Primary=1 Cursor=2
                value: 1
        29 IN_FORMATS:
                flags: immutable blob
                blobs:

                value:
                        01000000000000001e00000018000000
                        00000000900000004247313642473234
                        42583132425831354258323452473136
                        52473234525831325258313552583234
                        58423135584231325842323458523234
                        58523135585231324e5631364e563132
                        4e5632314e5636315559565956595559
                        59555956595659555955313159553132
                        59553136595631315956313259563136
                in_formats blob decoded:
                         BG16:
                         BG24:
                         BX12:
                         BX15:
                         BX24:
                         RG16:
                         RG24:
                         RX12:
                         RX15:
                         RX24:
                         XB15:
                         XB12:
                         XB24:
                         XR24:
                         XR15:
                         XR12:
                         NV16:
                         NV12:
                         NV21:
                         NV61:
                         UYVY:
                         VYUY:
                         YUYV:
                         YVYU:
                         YU11:
                         YU12:
                         YU16:
                         YV11:
                         YV12:
                         YV16:
        36 alpha:
                flags: range
                values: 0 65535
                value: 65535
        37 zpos:
                flags: range
                values: 0 2
                value: 0
38      0       0       0,0             0,0     0               0x00000001
  formats: AB15 AB12 AB24 AR15 AR12 AR24 BG16 BG24 BA15 BA12 BA24 BX24 RG16 RG24 RA12 RA15 RA24 RX24 XB24 XR24
  props:
        7 type:
                flags: immutable enum
                enums: Overlay=0 Primary=1 Cursor=2
                value: 0
        29 IN_FORMATS:
                flags: immutable blob
                blobs:

                value:
                        01000000000000001400000018000000
                        00000000680000004142313541423132
                        41423234415231354152313241523234
                        42473136424732344241313542413132
                        42413234425832345247313652473234
                        52413132524131355241323452583234
                        5842323458523234
                in_formats blob decoded:
                         AB15:
                         AB12:
                         AB24:
                         AR15:
                         AR12:
                         AR24:
                         BG16:
                         BG24:
                         BA15:
                         BA12:
                         BA24:
                         BX24:
                         RG16:
                         RG24:
                         RA12:
                         RA15:
                         RA24:
                         RX24:
                         XB24:
                         XR24:
        40 alpha:
                flags: range
                values: 0 65535
                value: 65535
        41 pixel blend mode:
                flags: enum
                enums: None=2 Pre-multiplied=0 Coverage=1
                value: 0
        42 zpos:
                flags: range
                values: 0 2
                value: 0

Frame buffers:
id      size    pitch

可以显示了:

modetest -M sun4i-drm -P 30@43:480x272+10+10 -P 34@43:480x272+100+100 -P 38@43:480x272+150+150

modetest -M sun4i-drm -s 45:800x480 -F smpte

听风识雨 · 全志 SOC

请问大家f1c100s上执行libdrm测试程序modetest屏幕没有反应
http://whycan.com/t_5446.html
(出处:哇酷开发者社区【全志 V3S/F1C100s/X3】)

这个是前面 f1c100s 的 modetest 测试

听风识雨 · 全志 SOC

# modetest
trying to open device 'i915'...failed
trying to open device 'amdgpu'...failed
trying to open device 'radeon'...failed
trying to open device 'nouveau'...failed
trying to open device 'vmwgfx'...failed
trying to open device 'omapdrm'...failed
trying to open device 'exynos'...failed
trying to open device 'tilcdc'...failed
trying to open device 'msm'...failed
trying to open device 'sti'...failed
trying to open device 'tegra'...failed
trying to open device 'imx-drm'...failed
trying to open device 'rockchip'...failed
trying to open device 'atmel-hlcdc'...failed
trying to open device 'fsl-dcu-drm'...failed
trying to open device 'vc4'...failed
trying to open device 'virtio_gpu'...failed
trying to open device 'mediatek'...failed
trying to open device 'meson'...failed
trying to open device 'pl111'...failed
trying to open device 'stm'...failed
trying to open device 'sun4i-drm'...done
Encoders:
id      crtc    type    possible crtcs  possible clones
42      41      none    0x00000001      0x00000000

Connectors:
id      encoder status          name            size (mm)       modes   encoders
43      42      connected       unknown-1       154x86          1       42
  modes:
        index name refresh (Hz) hdisp hss hse htot vdisp vss vse vtot)
  #0 800x480 61.58 800 840 888 928 480 493 496 525 30000 flags: ; type: preferred, driver
  props:
        1 EDID:
                flags: immutable blob
                blobs:

                value:
        2 DPMS:
                flags: enum
                enums: On=0 Standby=1 Suspend=2 Off=3
                value: 0
        5 link-status:
                flags: enum
                enums: Good=0 Bad=1
                value: 0
        6 non-desktop:
                flags: immutable range
                values: 0 1
                value: 0
        4 TILE:
                flags: immutable blob
                blobs:

                value:

CRTCs:
id      fb      pos     size
41      44      (0,0)   (800x480)
  #0 800x480 61.58 800 840 888 928 480 493 496 525 30000 flags: ; type: preferred, driver
  props:
        24 VRR_ENABLED:
                flags: range
                values: 0 1
                value: 0

Planes:
id      crtc    fb      CRTC x,y        x,y     gamma size      possible crtcs
31      0       0       0,0             0,0     0               0x00000001
  formats: BG16 BG24 BX12 BX15 BX24 RG16 RG24 RX12 RX15 RX24 XB15 XB12 XB24 XR15 XR12 XR24 NV16 NV12 NV21 NV61 UYVY VYUY YUYV YVYU YU11 YU12 YU16 YV11 YV12 YV16
  props:
        8 type:
                flags: immutable enum
                enums: Overlay=0 Primary=1 Cursor=2
                value: 0
        32 zpos:
                flags: range
                values: 0 2
                value: 0
        33 COLOR_ENCODING:
                flags: enum
                enums: ITU-R BT.601 YCbCr=0 ITU-R BT.709 YCbCr=1
                value: 0
        34 COLOR_RANGE:
                flags: enum
                enums: YCbCr limited range=0 YCbCr full range=1
                value: 0
35      0       0       0,0             0,0     0               0x00000001
  formats: BG16 BG24 BX12 BX15 BX24 RG16 RG24 RX12 RX15 RX24 XB15 XB12 XB24 XR15 XR12 XR24 NV16 NV12 NV21 NV61 UYVY VYUY YUYV YVYU YU11 YU12 YU16 YV11 YV12 YV16
  props:
        8 type:
                flags: immutable enum
                enums: Overlay=0 Primary=1 Cursor=2
                value: 0
        36 zpos:
                flags: range
                values: 0 2
                value: 0
        37 COLOR_ENCODING:
                flags: enum
                enums: ITU-R BT.601 YCbCr=0 ITU-R BT.709 YCbCr=1
                value: 0
        38 COLOR_RANGE:
                flags: enum
                enums: YCbCr limited range=0 YCbCr full range=1
                value: 0
39      41      44      0,0             0,0     0               0x00000001
  formats: AB15 AB12 AB24 AR15 AR12 AR24 BG16 BG24 BA15 BA12 BA24 BX24 RG16 RG24 RA12 RA15 RA24 RX24 XB24 XR24
  props:
        8 type:
                flags: immutable enum
                enums: Overlay=0 Primary=1 Cursor=2
                value: 1
        40 zpos:
                flags: range
                values: 0 2
                value: 0

Frame buffers:
id      size    pitch

modetest -M sun4i-drm -P 31@41:800x480+10+10

modetest -M sun4i-drm -P 35@0:800x480+100+100

modetest -M sun4i-drm -P 39@41:800x480+100+100

这三个只有最后一个才有反应, 而且显示还不对

不知道是驱动不对, 还是modetest使用有误

听风识雨 · 全志 SOC

建议参考buildroot 目录下面的 package/kf5

这个就是依赖 qt5和cmake的工程.

听风识雨 · 全志 SOC

收到100元，感谢楼主，感谢小二, 感谢哇酷网。

听风识雨 · 全志 SOC

如果重新勾选了某些选项没有起作用，可以用这个办法重新制作文件系统:

rm output/target -rf

#删除所有package的安装标识文件，执行make 会重新强制安装
find output/build/ |grep \\.stamp_target_installed |xargs rm -rf

make

听风识雨 · 全志 SOC

必选项:

BR2_PACKAGE_OPENCV3=y

#
# OpenCV modules
#
# BR2_PACKAGE_OPENCV3_LIB_CALIB3D is not set
# BR2_PACKAGE_OPENCV3_LIB_FEATURES2D is not set
# BR2_PACKAGE_OPENCV3_LIB_FLANN is not set
# BR2_PACKAGE_OPENCV3_LIB_HIGHGUI is not set
BR2_PACKAGE_OPENCV3_LIB_IMGCODECS=y
BR2_PACKAGE_OPENCV3_LIB_IMGPROC=y
# BR2_PACKAGE_OPENCV3_LIB_ML is not set
# BR2_PACKAGE_OPENCV3_LIB_OBJDETECT is not set
# BR2_PACKAGE_OPENCV3_LIB_PHOTO is not set
BR2_PACKAGE_OPENCV3_LIB_PYTHON=y
# BR2_PACKAGE_OPENCV3_LIB_SHAPE is not set
# BR2_PACKAGE_OPENCV3_LIB_STITCHING is not set
# BR2_PACKAGE_OPENCV3_LIB_SUPERRES is not set
# BR2_PACKAGE_OPENCV3_LIB_TS is not set
# BR2_PACKAGE_OPENCV3_LIB_VIDEOIO is not set

用qemu模拟器先跑一跑:

sudo apt install qemu-user-static -y
cp /usr/bin/qemu-arm-static output/target/usr/bin/
sudo chroot output/target/ /bin/sh

运行OK:

/ # python
Python 3.8.2 (default, Nov 15 2020, 08:10:56)
[GCC 4.8.3 20140320 (prerelease)] on linux
Type "help", "copyright", "credits" or "license" for more information.
>>> import cv2
>>> cv2.imread("AAAA.jpg")
>>>
>>>
>>> quit();

模拟器缺少随机数设备文件, 会提示:
Fatal Python error: _Py_HashRandomization_Init: failed to get random numbers to initialize Python

解决办法:
https://blog.csdn.net/u013538795/article/details/105703418

mknod -m 444 /dev/random c 1 8
mknod -m 444 /dev/urandom c 1 9

听风识雨 · VMWare/Linux/Ubuntu/Fedora/CentOS/U-BOOT

https://github.com/ccrisan/motionpie/blob/master/board/bananapi/postscript.sh

https://github.com/ccrisan/motionpie/blob/master/board/raspberrypi2/motioneye-modules/streameyectl.py

https://github.com/ccrisan/motionpie/blob/master/board/raspberrypi2/overlay/etc/init.d/S94streameye

这个项目也是基于 buildroot, 值得学习。

听风识雨 · 全志 SOC

https://cloud.tencent.com/developer/article/1409518

听风识雨 · 全志 SOC

向天笑说：

感谢楼主分享，现在 lvgl 也支持 libdrm了：
https://github.com/lvgl/lv_drivers/blob/master/display/drm.c
https://github.com/lvgl/lv_drivers/blob/master/display/drm.h

嗯， awtk也支持drm:

https://github.com/zlgopen/awtk-linux-fb/blob/master/awtk-port/lcd_linux_drm.h

https://github.com/zlgopen/awtk-linux-fb/blob/master/awtk-port/lcd_linux_drm.c

听风识雨 · 全志 SOC

QQ图片20201024082850.jpg

modetest -M sun4i-drm -P 31@47:480x272+10+10 -P 35@47:480x272+100+100 -P 39@47:480x272+150+150 -P 43@47:320x240+200+200

在 @HackforFun 大佬帮助下, 终于初步搞定四层测试

听风识雨 · 全志 SOC

屏幕是正常的, cat /dev/urandom > /dev/fb0 有反应。

听风识雨 · 全志 SOC

日志文件: libdrm_modetest_log.txt

听风识雨 · 全志 SOC

Connecting to COM58...
Connected.


U-Boot SPL 2020.07 (Oct 20 2020 - 11:09:37 +0800)
DRAM: 64 MiB
Trying to boot from MMC1


U-Boot 2020.07 (Oct 20 2020 - 11:09:37 +0800) Allwinner Technology

CPU:   Allwinner F Series (SUNIV)
Model: Allwinner F1C100s Generic Device
DRAM:  64 MiB
MMC:   mmc@1c0f000: 0, mmc@1c10000: 1
Setting up a 800x480 lcd console (overscan 0x0)
In:    serial
Out:   vga
Err:   vga
Allwinner mUSB OTG (Peripheral)
Hit any key to stop autoboot:  0 
switch to partitions #0, OK
mmc0 is current device
Card did not respond to voltage select!
unrecognized JEDEC id bytes: ff, c8, f1
Failed to initialize SPI flash at 0:0 (error -2)
List of MTD devices:
* spi-nand0
  - device: spi-nand@1
  - parent: spi@1c05000
  - driver: spi_nand
  - type: NAND flash
  - block size: 0x20000 bytes
  - min I/O: 0x800 bytes
  - OOB size: 64 bytes
  - OOB available: 31 bytes
  - 0x000000000000-0x000008000000 : "spi-nand0"
=========================
Boot Device: mmc0
Boot Slot 0: mmc0
Boot Slot 1: spi-nand
=========================
switch to partitions #0, OK
mmc0 is current device
Booting from MMC0...
4317144 bytes read in 702 ms (5.9 MiB/s)
15533 bytes read in 7 ms (2.1 MiB/s)
## Flattened Device Tree blob at 80700000
   Booting using the fdt blob at 0x80700000
   Loading Device Tree to 816f9000, end 816ffcac ... OK
Cannot setup simplefb: node not found

Starting kernel ...

[    0.000000] Booting Linux on physical CPU 0x0
[    0.000000] Linux version 5.4.66 (whycan@ubuntu) (gcc version 8.4.0 (Buildroot 2020.02.4-00005-g9d84975a2d)) #1 Tue Oct 20 11:10:31 CST 2020
[    0.000000] CPU: ARM926EJ-S [41069265] revision 5 (ARMv5TEJ), cr=0005317f
[    0.000000] CPU: VIVT data cache, VIVT instruction cache
[    0.000000] OF: fdt: Machine model: Widora MangoPi R3
[    0.000000] Memory policy: Data cache writeback
[    0.000000] cma: Reserved 16 MiB at 0x83000000
[    0.000000] Built 1 zonelists, mobility grouping on.  Total pages: 16256
[    0.000000] Kernel command line: console=ttyS0,115200 earlyprintk rootwait consoleblank=0 net.ifnames=0 biosdevname=0 root=/dev/mmcblk0p3
[    0.000000] Dentry cache hash table entries: 8192 (order: 3, 32768 bytes, linear)
[    0.000000] Inode-cache hash table entries: 4096 (order: 2, 16384 bytes, linear)
[    0.000000] mem auto-init: stack:off, heap alloc:off, heap free:off
[    0.000000] Memory: 38736K/65536K available (6144K kernel code, 248K rwdata, 1680K rodata, 1024K init, 225K bss, 10416K reserved, 16384K cma-reserved)
[    0.000000] SLUB: HWalign=32, Order=0-3, MinObjects=0, CPUs=1, Nodes=1
[    0.000000] NR_IRQS: 16, nr_irqs: 16, preallocated irqs: 16
[    0.000000] random: get_random_bytes called from start_kernel+0x254/0x444 with crng_init=0
[    0.000049] sched_clock: 32 bits at 24MHz, resolution 41ns, wraps every 89478484971ns
[    0.000138] clocksource: timer: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 79635851949 ns
[    0.000896] Console: colour dummy device 80x30
[    0.001008] Calibrating delay loop... 203.16 BogoMIPS (lpj=1015808)
[    0.070261] pid_max: default: 32768 minimum: 301
[    0.070762] Mount-cache hash table entries: 1024 (order: 0, 4096 bytes, linear)
[    0.070803] Mountpoint-cache hash table entries: 1024 (order: 0, 4096 bytes, linear)
[    0.072691] CPU: Testing write buffer coherency: ok
[    0.074791] Setting up static identity map for 0x80100000 - 0x80100058
[    0.076097] devtmpfs: initialized
[    0.088051] clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns
[    0.088113] futex hash table entries: 256 (order: -1, 3072 bytes, linear)
[    0.092275] pinctrl core: initialized pinctrl subsystem
[    0.095022] NET: Registered protocol family 16
[    0.098735] DMA: preallocated 256 KiB pool for atomic coherent allocations
[    0.101110] cpuidle: using governor menu
[    0.145605] SCSI subsystem initialized
[    0.145989] usbcore: registered new interface driver usbfs
[    0.146196] usbcore: registered new interface driver hub
[    0.146393] usbcore: registered new device driver usb
[    0.146897] mc: Linux media interface: v0.10
[    0.147051] videodev: Linux video capture interface: v2.00
[    0.147173] pps_core: LinuxPPS API ver. 1 registered
[    0.147193] pps_core: Software ver. 5.3.6 - Copyright 2005-2007 Rodolfo Giometti <giometti@linux.it>
[    0.147262] PTP clock support registered
[    0.148335] ion_parse_dt_heap_common: id 4 type 4 name cma align 1000
[    0.149338] Advanced Linux Sound Architecture Driver Initialized.
[    0.151871] clocksource: Switched to clocksource timer
[    0.183602] thermal_sys: Registered thermal governor 'step_wise'
[    0.184373] NET: Registered protocol family 2
[    0.186004] tcp_listen_portaddr_hash hash table entries: 512 (order: 0, 4096 bytes, linear)
[    0.186091] TCP established hash table entries: 1024 (order: 0, 4096 bytes, linear)
[    0.186149] TCP bind hash table entries: 1024 (order: 0, 4096 bytes, linear)
[    0.186198] TCP: Hash tables configured (established 1024 bind 1024)
[    0.186505] UDP hash table entries: 256 (order: 0, 4096 bytes, linear)
[    0.186567] UDP-Lite hash table entries: 256 (order: 0, 4096 bytes, linear)
[    0.187091] NET: Registered protocol family 1
[    0.189740] NetWinder Floating Point Emulator V0.97 (double precision)
[    0.191601] Initialise system trusted keyrings
[    0.192387] workingset: timestamp_bits=30 max_order=14 bucket_order=0
[    0.214403] squashfs: version 4.0 (2009/01/31) Phillip Lougher
[    0.215039] jffs2: version 2.2. (NAND) (SUMMARY)  © 2001-2006 Red Hat, Inc.
[    0.329964] Key type asymmetric registered
[    0.330002] Asymmetric key parser 'x509' registered
[    0.330168] Block layer SCSI generic (bsg) driver version 0.4 loaded (major 249)
[    0.330196] io scheduler mq-deadline registered
[    0.330213] io scheduler kyber registered
[    0.345969] suniv-f1c100s-pinctrl 1c20800.pinctrl: initialized sunXi PIO driver
[    0.370180] Serial: 8250/16550 driver, 8 ports, IRQ sharing disabled
[    0.376529] suniv-f1c100s-pinctrl 1c20800.pinctrl: 1c20800.pinctrl supply vcc-pa not found, using dummy regulator
[    0.377878] printk: console [ttyS0] disabled
[    0.398208] 1c25400.serial: ttyS0 at MMIO 0x1c25400 (irq = 28, base_baud = 6250000) is a 16550A
[    0.828403] printk: console [ttyS0] enabled
[    0.838230] suniv-f1c100s-pinctrl 1c20800.pinctrl: 1c20800.pinctrl supply vcc-pd not found, using dummy regulator
[    0.859557] panel-simple panel: panel supply power not found, using dummy regulator
[    0.869274] SCSI Media Changer driver v0.25 
[    0.875190] suniv-f1c100s-pinctrl 1c20800.pinctrl: 1c20800.pinctrl supply vcc-pc not found, using dummy regulator
[    0.888081] spi-nor spi0.0: unrecognized JEDEC id bytes: 00 c8 f1 c8 f1 c8
[    0.895680] ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver
[    0.902319] ehci-platform: EHCI generic platform driver
[    0.907971] ohci_hcd: USB 1.1 'Open' Host Controller (OHCI) Driver
[    0.914290] ohci-platform: OHCI generic platform driver
[    0.920068] usbcore: registered new interface driver usb-storage
[    0.927202] usb_phy_generic usb_phy_generic.0.auto: usb_phy_generic.0.auto supply vcc not found, using dummy regulator
[    0.940837] i2c /dev entries driver
[    0.945119] suniv-f1c100s-pinctrl 1c20800.pinctrl: 1c20800.pinctrl supply vcc-pd not found, using dummy regulator
[    0.958873] suniv-f1c100s-pinctrl 1c20800.pinctrl: 1c20800.pinctrl supply vcc-pe not found, using dummy regulator
[    0.969865] sun4i-csi 1cb0000.csi: Packed (RAW) format enabled.
[    0.977724] sunxi-wdt 1c20ca0.watchdog: Watchdog enabled (timeout=16 sec, nowayout=0)
[    0.987802] suniv-f1c100s-pinctrl 1c20800.pinctrl: 1c20800.pinctrl supply vcc-pf not found, using dummy regulator
[    1.025855] sunxi-mmc 1c0f000.mmc: initialized, max. request size: 16384 KB
[    1.035352] usbcore: registered new interface driver usbhid
[    1.040926] usbhid: USB HID core driver
[    1.045202] sunxi-cedar 1c0e000.video-codec: sunxi cedar version 0.01alpha
[    1.052496] sunxi-cedar 1c0e000.video-codec: cedar-ve the get irq is 20
[    1.064232] debugfs: Directory '1c23c00.codec' with parent 'F1C100s Audio Codec' already present!
[    1.078113] sun4i-codec 1c23c00.codec: Codec <-> 1c23c00.codec mapping ok
[    1.094614] NET: Registered protocol family 17
[    1.099169] Key type dns_resolver registered
[    1.104667] Loading compiled-in X.509 certificates
[    1.123260] sun4i-drm soc:display-engine: bound 1e00000.display-frontend (ops 0xc073b3d8)
[    1.132315] sun4i-drm soc:display-engine: bound 1e60000.display-backend (ops 0xc073ac18)
[    1.141828] sun4i-drm soc:display-engine: bound 1c0c000.lcd-controller (ops 0xc07397b8)
[    1.150413] sun4i-drm soc:display-engine: bound 1c0a000.tv-encoder (ops 0xc073a4d8)
[    1.158193] [drm] Supports vblank timestamp caching Rev 2 (21.10.2013).
[    1.164855] [drm] No driver support for vblank timestamp query.
[    1.172640] [drm] Initialized sun4i-drm 1.0.0 20150629 for soc:display-engine on minor 0
[    1.181552] [drm] kms: can't enable cloning when we probably wanted to.
[    1.253664] Console: switching to colour frame buffer device 100x30
[    1.260080] mmc0: host does not support reading read-only switch, assuming write-enable
[    1.262868] mmc0: new high speed SD card at address 0001
[    1.265210] mmcblk0: mmc0:0001 00000 1.83 GiB 
[    1.296288]  mmcblk0: p1 p2 p3
[    1.320882] sun4i-drm soc:display-engine: fb0: sun4i-drmdrmfb frame buffer device
[    1.329312] cfg80211: Loading compiled-in X.509 certificates for regulatory database
[    1.347260] cfg80211: Loaded X.509 cert 'sforshee: 00b28ddf47aef9cea7'
[    1.354102] ALSA device list:
[    1.357091]   #0: F1C100s Audio Codec
[    1.361288] platform regulatory.0: Direct firmware load for regulatory.db failed with error -2
[    1.370087] cfg80211: failed to load regulatory.db
[    1.385261] EXT4-fs (mmcblk0p3): INFO: recovery required on readonly filesystem
[    1.392694] EXT4-fs (mmcblk0p3): write access will be enabled during recovery
[    1.416029] random: fast init done
[    1.651705] EXT4-fs (mmcblk0p3): recovery complete
[    1.672395] EXT4-fs (mmcblk0p3): mounted filesystem with ordered data mode. Opts: (null)
[    1.680633] VFS: Mounted root (ext4 filesystem) readonly on device 179:3.
[    1.690205] devtmpfs: mounted
[    1.699751] Freeing unused kernel memory: 1024K
[    1.704528] Run /sbin/init as init process
[    1.911515] EXT4-fs (mmcblk0p3): re-mounted. Opts: (null)
Mounting OverlayFS: Skip
Starting syslogd: OK
Starting klogd: OK
Running sysctl: OK
Populating /dev using udev: [    2.519354] udevd[86]: starting version 3.2.9
[    2.552314] random: udevd: uninitialized urandom read (16 bytes read)
[    2.564164] random: udevd: uninitialized urandom read (16 bytes read)
[    2.571118] random: udevd: uninitialized urandom read (16 bytes read)
[    2.671601] udevd[87]: starting eudev-3.2.9
done
Initializing random number generator: OK
Saving random seed: [    5.271298] random: dd: uninitialized urandom read (512 bytes read)
OK
Starting network: OK
# 
# 
# 
# modetest 
[   13.280195] random: crng init done
trying to open device 'i915'...failed
trying to open device 'amdgpu'...failed
trying to open device 'radeon'...failed
trying to open device 'nouveau'...failed
trying to open device 'vmwgfx'...failed
trying to open device 'omapdrm'...failed
trying to open device 'exynos'...failed
trying to open device 'tilcdc'...failed
trying to open device 'msm'...failed
trying to open device 'sti'...failed
trying to open device 'tegra'...failed
trying to open device 'imx-drm'...failed
trying to open device 'rockchip'...failed
trying to open device 'atmel-hlcdc'...failed
trying to open device 'fsl-dcu-drm'...failed
trying to open device 'vc4'...failed
trying to open device 'virtio_gpu'...failed
trying to open device 'mediatek'...failed
trying to open device 'meson'...failed
trying to open device 'pl111'...failed
trying to open device 'stm'...failed
trying to open device 'sun4i-drm'...done
Encoders:
id	crtc	type	possible crtcs	possible clones	
48	47	none	0x00000001	0x00000000
50	0	TVDAC	0x00000001	0x00000000

Connectors:
id	encoder	status		name		size (mm)	modes	encoders
49	48	connected	unknown-1      	154x86		1	48
  modes:
	name refresh (Hz) hdisp hss hse htot vdisp vss vse vtot)
  800x480 62 800 840 888 928 480 493 496 525 30000 flags: ; type: preferred, driver
  props:
	1 EDID:
		flags: immutable blob
		blobs:

		value:
	2 DPMS:
		flags: enum
		enums: On=0 Standby=1 Suspend=2 Off=3
		value: 0
	5 link-status:
		flags: enum
		enums: Good=0 Bad=1
		value: 0
	6 non-desktop:
		flags: immutable range
		values: 0 1
		value: 0
	4 TILE:
		flags: immutable blob
		blobs:

		value:
	20 CRTC_ID:
		flags: object
		value: 47
51	0	connected	composite-1    	0x0		2	50
  modes:
	name refresh (Hz) hdisp hss hse htot vdisp vss vse vtot)
  PAL 50 720 723 725 864 576 604 606 625 13500 flags: interlace; type: driver
  NTSC 60 720 738 740 858 480 506 508 525 13500 flags: interlace; type: driver
  props:
	1 EDID:
		flags: immutable blob
		blobs:

		value:
	2 DPMS:
		flags: enum
		enums: On=0 Standby=1 Suspend=2 Off=3
		value: 0
	5 link-status:
		flags: enum
		enums: Good=0 Bad=1
		value: 0
	6 non-desktop:
		flags: immutable range
		values: 0 1
		value: 0
	4 TILE:
		flags: immutable blob
		blobs:

		value:
	20 CRTC_ID:
		flags: object
		value: 0

CRTCs:
id	fb	pos	size
47	52	(0,0)	(800x480)
  800x480 62 800 840 888 928 480 493 496 525 30000 flags: ; type: preferred, driver
  props:
	22 ACTIVE:
		flags: range
		values: 0 1
		value: 1
	23 MODE_ID:
		flags: blob
		blobs:

		value:
			30750000200348037803a0030000e001
			ed01f0010d0200003e00000000000000
			48000000383030783438300000000000
			00000000000000000000000000000000
			00000000
	19 OUT_FENCE_PTR:
		flags: range
		values: 0 18446744073709551615
		value: 0
	24 VRR_ENABLED:
		flags: range
		values: 0 1
		value: 0

Planes:
id	crtc	fb	CRTC x,y	x,y	gamma size	possible crtcs
31	47	52	0,0		0,0	0       	0x00000001
  formats: AR24 AR12 AR15 BX24 RA15 RA12 RG24 RG16 NV12 NV16 NV21 NV61 UYVY VYUY XR24 YU11 YU12 YU16 YU24 YUYV YV11 YV12 YV16 YV24 YVYU
  props:
	8 type:
		flags: immutable enum
		enums: Overlay=0 Primary=1 Cursor=2
		value: 1
	17 FB_ID:
		flags: object
		value: 52
	18 IN_FENCE_FD:
		flags: signed range
		values: -1 2147483647
		value: -1
	20 CRTC_ID:
		flags: object
		value: 47
	13 CRTC_X:
		flags: signed range
		values: -2147483648 2147483647
		value: 0
	14 CRTC_Y:
		flags: signed range
		values: -2147483648 2147483647
		value: 0
	15 CRTC_W:
		flags: range
		values: 0 2147483647
		value: 800
	16 CRTC_H:
		flags: range
		values: 0 2147483647
		value: 480
	9 SRC_X:
		flags: range
		values: 0 4294967295
		value: 0
	10 SRC_Y:
		flags: range
		values: 0 4294967295
		value: 0
	11 SRC_W:
		flags: range
		values: 0 4294967295
		value: 52428800
	12 SRC_H:
		flags: range
		values: 0 4294967295
		value: 31457280
	30 IN_FORMATS:
		flags: immutable blob
		blobs:

		value:
			01000000000000001900000018000000
			02000000800000004152323441523132
			41523135425832345241313552413132
			52473234524731364e5631324e563136
			4e5632314e5636315559565956595559
			58523234595531315955313259553136
			59553234595559565956313159563132
			59563136595632345956595500000000
			ffffff01000000000000000000000000
			0000000000000000008f730000000000
			00000000000000000100000000000009
		in_formats blob decoded:
			 AR24:  LINEAR
			 AR12:  LINEAR
			 AR15:  LINEAR
			 BX24:  LINEAR
			 RA15:  LINEAR
			 RA12:  LINEAR
			 RG24:  LINEAR
			 RG16:  LINEAR
			 NV12:  LINEAR (UNKNOWN MODIFIER)
			 NV16:  LINEAR (UNKNOWN MODIFIER)
			 NV21:  LINEAR (UNKNOWN MODIFIER)
			 NV61:  LINEAR (UNKNOWN MODIFIER)
			 UYVY:  LINEAR
			 VYUY:  LINEAR
			 XR24:  LINEAR
			 YU11:  LINEAR (UNKNOWN MODIFIER)
			 YU12:  LINEAR (UNKNOWN MODIFIER)
			 YU16:  LINEAR (UNKNOWN MODIFIER)
			 YU24:  LINEAR
			 YUYV:  LINEAR
			 YV11:  LINEAR (UNKNOWN MODIFIER)
			 YV12:  LINEAR (UNKNOWN MODIFIER)
			 YV16:  LINEAR (UNKNOWN MODIFIER)
			 YV24:  LINEAR
			 YVYU:  LINEAR
	33 alpha:
		flags: range
		values: 0 65535
		value: 65535
	34 zpos:
		flags: range
		values: 0 3
		value: 0
35	0	0	0,0		0,0	0       	0x00000001
  formats: AR24 AR12 AR15 BX24 RA15 RA12 RG24 RG16 NV12 NV16 NV21 NV61 UYVY VYUY XR24 YU11 YU12 YU16 YU24 YUYV YV11 YV12 YV16 YV24 YVYU
  props:
	8 type:
		flags: immutable enum
		enums: Overlay=0 Primary=1 Cursor=2
		value: 0
	17 FB_ID:
		flags: object
		value: 0
	18 IN_FENCE_FD:
		flags: signed range
		values: -1 2147483647
		value: -1
	20 CRTC_ID:
		flags: object
		value: 0
	13 CRTC_X:
		flags: signed range
		values: -2147483648 2147483647
		value: 0
	14 CRTC_Y:
		flags: signed range
		values: -2147483648 2147483647
		value: 0
	15 CRTC_W:
		flags: range
		values: 0 2147483647
		value: 0
	16 CRTC_H:
		flags: range
		values: 0 2147483647
		value: 0
	9 SRC_X:
		flags: range
		values: 0 4294967295
		value: 0
	10 SRC_Y:
		flags: range
		values: 0 4294967295
		value: 0
	11 SRC_W:
		flags: range
		values: 0 4294967295
		value: 0
	12 SRC_H:
		flags: range
		values: 0 4294967295
		value: 0
	30 IN_FORMATS:
		flags: immutable blob
		blobs:

		value:
			01000000000000001900000018000000
			02000000800000004152323441523132
			41523135425832345241313552413132
			52473234524731364e5631324e563136
			4e5632314e5636315559565956595559
			58523234595531315955313259553136
			59553234595559565956313159563132
			59563136595632345956595500000000
			ffffff01000000000000000000000000
			0000000000000000008f730000000000
			00000000000000000100000000000009
		in_formats blob decoded:
			 AR24:  LINEAR
			 AR12:  LINEAR
			 AR15:  LINEAR
			 BX24:  LINEAR
			 RA15:  LINEAR
			 RA12:  LINEAR
			 RG24:  LINEAR
			 RG16:  LINEAR
			 NV12:  LINEAR (UNKNOWN MODIFIER)
			 NV16:  LINEAR (UNKNOWN MODIFIER)
			 NV21:  LINEAR (UNKNOWN MODIFIER)
			 NV61:  LINEAR (UNKNOWN MODIFIER)
			 UYVY:  LINEAR
			 VYUY:  LINEAR
			 XR24:  LINEAR
			 YU11:  LINEAR (UNKNOWN MODIFIER)
			 YU12:  LINEAR (UNKNOWN MODIFIER)
			 YU16:  LINEAR (UNKNOWN MODIFIER)
			 YU24:  LINEAR
			 YUYV:  LINEAR
			 YV11:  LINEAR (UNKNOWN MODIFIER)
			 YV12:  LINEAR (UNKNOWN MODIFIER)
			 YV16:  LINEAR (UNKNOWN MODIFIER)
			 YV24:  LINEAR
			 YVYU:  LINEAR
	37 alpha:
		flags: range
		values: 0 65535
		value: 65535
	38 zpos:
		flags: range
		values: 0 3
		value: 1
39	0	0	0,0		0,0	0       	0x00000001
  formats: AR24 AR12 AR15 BX24 RA15 RA12 RG24 RG16 NV12 NV16 NV21 NV61 UYVY VYUY XR24 YU11 YU12 YU16 YU24 YUYV YV11 YV12 YV16 YV24 YVYU
  props:
	8 type:
		flags: immutable enum
		enums: Overlay=0 Primary=1 Cursor=2
		value: 0
	17 FB_ID:
		flags: object
		value: 0
	18 IN_FENCE_FD:
		flags: signed range
		values: -1 2147483647
		value: -1
	20 CRTC_ID:
		flags: object
		value: 0
	13 CRTC_X:
		flags: signed range
		values: -2147483648 2147483647
		value: 0
	14 CRTC_Y:
		flags: signed range
		values: -2147483648 2147483647
		value: 0
	15 CRTC_W:
		flags: range
		values: 0 2147483647
		value: 0
	16 CRTC_H:
		flags: range
		values: 0 2147483647
		value: 0
	9 SRC_X:
		flags: range
		values: 0 4294967295
		value: 0
	10 SRC_Y:
		flags: range
		values: 0 4294967295
		value: 0
	11 SRC_W:
		flags: range
		values: 0 4294967295
		value: 0
	12 SRC_H:
		flags: range
		values: 0 4294967295
		value: 0
	30 IN_FORMATS:
		flags: immutable blob
		blobs:

		value:
			01000000000000001900000018000000
			02000000800000004152323441523132
			41523135425832345241313552413132
			52473234524731364e5631324e563136
			4e5632314e5636315559565956595559
			58523234595531315955313259553136
			59553234595559565956313159563132
			59563136595632345956595500000000
			ffffff01000000000000000000000000
			0000000000000000008f730000000000
			00000000000000000100000000000009
		in_formats blob decoded:
			 AR24:  LINEAR
			 AR12:  LINEAR
			 AR15:  LINEAR
			 BX24:  LINEAR
			 RA15:  LINEAR
			 RA12:  LINEAR
			 RG24:  LINEAR
			 RG16:  LINEAR
			 NV12:  LINEAR (UNKNOWN MODIFIER)
			 NV16:  LINEAR (UNKNOWN MODIFIER)
			 NV21:  LINEAR (UNKNOWN MODIFIER)
			 NV61:  LINEAR (UNKNOWN MODIFIER)
			 UYVY:  LINEAR
			 VYUY:  LINEAR
			 XR24:  LINEAR
			 YU11:  LINEAR (UNKNOWN MODIFIER)
			 YU12:  LINEAR (UNKNOWN MODIFIER)
			 YU16:  LINEAR (UNKNOWN MODIFIER)
			 YU24:  LINEAR
			 YUYV:  LINEAR
			 YV11:  LINEAR (UNKNOWN MODIFIER)
			 YV12:  LINEAR (UNKNOWN MODIFIER)
			 YV16:  LINEAR (UNKNOWN MODIFIER)
			 YV24:  LINEAR
			 YVYU:  LINEAR
	41 alpha:
		flags: range
		values: 0 65535
		value: 65535
	42 zpos:
		flags: range
		values: 0 3
		value: 2
43	0	0	0,0		0,0	0       	0x00000001
  formats: AR24 AR12 AR15 BX24 RA15 RA12 RG24 RG16 NV12 NV16 NV21 NV61 UYVY VYUY XR24 YU11 YU12 YU16 YU24 YUYV YV11 YV12 YV16 YV24 YVYU
  props:
	8 type:
		flags: immutable enum
		enums: Overlay=0 Primary=1 Cursor=2
		value: 0
	17 FB_ID:
		flags: object
		value: 0
	18 IN_FENCE_FD:
		flags: signed range
		values: -1 2147483647
		value: -1
	20 CRTC_ID:
		flags: object
		value: 0
	13 CRTC_X:
		flags: signed range
		values: -2147483648 2147483647
		value: 0
	14 CRTC_Y:
		flags: signed range
		values: -2147483648 2147483647
		value: 0
	15 CRTC_W:
		flags: range
		values: 0 2147483647
		value: 0
	16 CRTC_H:
		flags: range
		values: 0 2147483647
		value: 0
	9 SRC_X:
		flags: range
		values: 0 4294967295
		value: 0
	10 SRC_Y:
		flags: range
		values: 0 4294967295
		value: 0
	11 SRC_W:
		flags: range
		values: 0 4294967295
		value: 0
	12 SRC_H:
		flags: range
		values: 0 4294967295
		value: 0
	30 IN_FORMATS:
		flags: immutable blob
		blobs:

		value:
			01000000000000001900000018000000
			02000000800000004152323441523132
			41523135425832345241313552413132
			52473234524731364e5631324e563136
			4e5632314e5636315559565956595559
			58523234595531315955313259553136
			59553234595559565956313159563132
			59563136595632345956595500000000
			ffffff01000000000000000000000000
			0000000000000000008f730000000000
			00000000000000000100000000000009
		in_formats blob decoded:
			 AR24:  LINEAR
			 AR12:  LINEAR
			 AR15:  LINEAR
			 BX24:  LINEAR
			 RA15:  LINEAR
			 RA12:  LINEAR
			 RG24:  LINEAR
			 RG16:  LINEAR
			 NV12:  LINEAR (UNKNOWN MODIFIER)
			 NV16:  LINEAR (UNKNOWN MODIFIER)
			 NV21:  LINEAR (UNKNOWN MODIFIER)
			 NV61:  LINEAR (UNKNOWN MODIFIER)
			 UYVY:  LINEAR
			 VYUY:  LINEAR
			 XR24:  LINEAR
			 YU11:  LINEAR (UNKNOWN MODIFIER)
			 YU12:  LINEAR (UNKNOWN MODIFIER)
			 YU16:  LINEAR (UNKNOWN MODIFIER)
			 YU24:  LINEAR
			 YUYV:  LINEAR
			 YV11:  LINEAR (UNKNOWN MODIFIER)
			 YV12:  LINEAR (UNKNOWN MODIFIER)
			 YV16:  LINEAR (UNKNOWN MODIFIER)
			 YV24:  LINEAR
			 YVYU:  LINEAR
	45 alpha:
		flags: range
		values: 0 65535
		value: 65535
	46 zpos:
		flags: range
		values: 0 3
		value: 3

Frame buffers:
id	size	pitch

#

上面是控制台日志

听风识雨 · » 2020-10-18 18:10:05

QQ截图20201018180738.png

QQ截图20201018180709.png

听风识雨 · 全志 SOC

bingyinhaha 说：

听风识雨说：
主线Linux暂时不支持, 但是我搞定了, X3/V3s/F1C100s都可以用
大佬有在x3上实测过可以运行没，用的是 tina 还是主线啊。

基于aodzip大神的buildroot, 添加rndis/dhcpd/mjpg-streamer, 打造了tiny200"伪"网络摄像头
http://whycan.com/t_5391.html#p54413
(出处:哇酷开发者社区【全志 V3S/F1C100s/X3】)

听风识雨 · 全志 SOC

QQ图片20201011171414.jpg

tiny200 gc0308 伪网络摄像头: sysimage-sdcard-gc0308-20201011.7z

地址还是: http://192.168.7.1:8080/

听风识雨 · 全志 SOC

主线Linux暂时不支持, 但是我搞定了, X3/V3s/F1C100s都可以用

听风识雨 · VMWare/Linux/Ubuntu/Fedora/CentOS/U-BOOT

表示关注, 找了一下确实没有找到选项.

听风识雨 · 全志 SOC

可能是端点不够, 有空我到 A33 试一试.

听风识雨 · 全志 SOC

https://blog.csdn.net/xiaofeng881105/article/details/82530515

如果驱动加载成功且没有报错的话，在电脑端应该能识别到UVC camera。但由于3516av100可用的usb 端点数量有限，g_webcam加载时报错：
g_webcam gadget: uvc_function_bind
g_webcam gadget: Unable to allocate streaming EP

himm 0x10080044 ---> 0x00000024
himm 0x10080048 ---> 0x2288C8D4
读取硬件配置寄存器GHWCFG1和GHWCFG2，可以查看到除了ep0（双向）之外，只有两个可用端点，一个in一个out。Usb协议中ep0为必备端点，上电即可使用，而其他端点需要通过ep0和主机建立连接时进行配置，配置后才可以使用。UVC协议中需要使用两个IN ep，一个用作视频控制VC，一个用作视频流VS，因此在加载该驱动时获取ep失败，在绑定uvc功能模块时报的错。（海思方面答复是3516av100不支持）
注意：驱动本身最大支持到16个端点（含ep0），但是实际可用的受限于硬件，通过读取寄存器获取到可用端点总数和in/out端点数。

理论上可以复用ep0作为uvc的VC端点，因为ep0是双向的；但实际验证行不通，为此做了如下修改尝试：
VC复用ep0
VC为空
VC和VS共用端点
主要修改f_uvd.c中uvc_function_bind函数。
上面的修改均行不通，修改后再host对设备进行配置时，setup报错。
实际查看代码，关于uvc的描述符中定义了uvc控制类和uvc视频流类：uvc_control_cls和uvc_fs_streaming_cls，还有一个uvc_hs_streaming_cls类。
如果要修改还需要对uvc协议和驱动代码深入的了解，时间有限，没有深入去理解。

听风识雨 · 全志 SOC

http://bbs.ebaina.com/thread-39433-1-1.html

请问有没有在3518EV200上做uvc gadget webcam的？加载驱动报下面的错误，似乎usb ep没申请到，可能是什么问题？
# insmod g_webcam.ko
g_webcam gadget: uvc_function_bind
g_webcam gadget: Unable to allocate streaming EP
insmod: can't insert 'g_webcam.ko': Invalid argument

好像节点不够啊
申请了一个control的EP IN的节点成功了。再申请一个Stream的EP In的节点就失败了。难道3518EV200这个芯片的USB只能支持1个EP In的节点？从哪里可以确认？技术手册？什么文档？

代码里面加了打印，竟然dwc_otg在初始化的时候，只有一个In和一个Out ep。这个是硬件决定的？还是可以修改配置？
硬件决定的，看GHWCFG2这个寄存器。
是的，确实是读这个寄存器，dwc_otg加载的时候，判断的。
就是不清楚是否可以修改。如果改不了，那这个芯片就用不了了。
有没有芯片支持的EP可以多点的？3516、3519、3518？

听风识雨 · 全志 SOC

https://forums.developer.nvidia.com/t/tx2-usb-3-0-device-mode-support-iso-transfer/62626

i want to know did the usb 3.0 host can support ISO transfer
i have apply the patch to set usb 3.0 into device mode
when i set it to bulk mode ,it can work well
but when i try to set it as ISO mode ,it can’t int succeed
[ 176.034876] g_webcam 3550000.xudc: failed to start g_webcam: -22
[ 207.267492] tegra-xotg xotg: update_vbus_state: VBUS detected
[ 207.482267] tegra-usb-cd usb_cd: notification status (0x0, 0x10)
[ 207.488345] tegra-usb-cd usb_cd: connected to CDP
[ 207.493170] tegra-usb-cd usb_cd: set current 0ma
[ 207.497874] tegra-xudc-new 3550000.xudc: exiting ELPG
[ 207.505957] tegra-xudc-new 3550000.xudc: exiting ELPG done
[ 207.511482] tegra-xudc-new 3550000.xudc: device mode on
[ 211.845324] g_webcam gadget: Linux USB Audio Gadget, version: Feb 2, 2012
[ 211.852259] g_webcam gadget: uvc_function_bind
[ 211.856761] g_webcam gadget: Unable to allocate streaming EP
[ 211.862458] ac_intf:0
[ 211.864742] as_in_intf:1
[ 211.867315] f_audio_bind:671
[ 211.870230] g_webcam 3550000.xudc: failed to start g_webcam: -22
any one can help me to confirm that?

是usb 不支持 iso 模式?

听风识雨 · 全志 SOC

https://forum.pine64.org/printthread.php?tid=6227

RE: Problem setting Pine64 as a USB device - martin357 - 07-02-2018
Thank you for your response.
Trying different USB cable, also sudo lsusb but I see no change.
In the meanwhile I tried:
Modprobe g_webcam as the only gadget module that is included in armbain 5.3x 3.10.105/107, it failed to load:
Code:
[ 125.143273] g_webcam gadget: uvc_function_bind
[ 125.143306] gadget_is_softwinner_otg is not -int # << this is the same error I get when loading
[ 125.143314] gadget_is_softwinner_otg is not -int # the g_serial module without the use_acm=0
[ 125.143322] gadget_is_softwinner_otg is not -int # option. In both cases it doesn't work.
[ 125.143330] gadget_is_softwinner_otg is not -int
[ 125.143347] g_webcam gadget: Unable to allocate streaming EP
[ 125.143382] g_webcam 1c19000.udc-controller: failed to start g_webcam: -22
I get the same errors about endpoints when I try to insert my compiled g_serial without the use_acm=0 option. It realy does seem that gadgets simply do not work with this(BSP/mostly BSP) kernel 3.10.107 and that's why it's not included . However I can't find any further information about it.
I using configfs to setup the gadget seem to get the same result.(and functionfs is not configured on Armbian with 3.10.105/107 kernel)
I found out that USB gadgets actualy do work with the mainline kernel(4.13.xx), which is great, but does not really solve my problem, because the mainline kernel does not support DSI MIPI displays at this time. Because of that, I am still trying to make it work on the 3.10.xx kernel.
I am looking for a way to get both of those features working.

一样的错误 ...

听风识雨 · 全志 SOC

启动文件: /etc/init.d/S99uvc

mount -t configfs none /sys/kernel/config

mkdir /sys/kernel/config/usb_gadget/g1
cd /sys/kernel/config/usb_gadget/g1
mkdir configs/c.1
mkdir strings/0x409
mkdir configs/c.1/strings/0x409
echo 0x3290 > idProduct
echo 0x18ec > idVendor
echo 0x0310 > bcdUSB
echo serial > strings/0x409/serialnumber
echo manufacturer > strings/0x409/manufacturer
echo UVC Gadget > strings/0x409/product
echo "Conf 1" > configs/c.1/strings/0x409/configuration
echo 120 > configs/c.1/MaxPower
mkdir functions/uvc.usb0
mkdir -p functions/uvc.usb0/streaming/uncompressed/u/480p
cat <<EOF > functions/uvc.usb0/streaming/uncompressed/u/480p/dwFrameInterval
333333
1000000
5000000
EOF
echo 480 > functions/uvc.usb0/streaming/uncompressed/u/480p/wHeight
echo 333333 > functions/uvc.usb0/streaming/uncompressed/u/480p/dwDefaultFrameInterval
echo 614400 > functions/uvc.usb0/streaming/uncompressed/u/480p/dwMaxVideoFrameBufferSize
echo 73728000 > functions/uvc.usb0/streaming/uncompressed/u/480p/dwMaxBitRate
echo 24576000 > functions/uvc.usb0/streaming/uncompressed/u/480p/dwMinBitRate
mkdir functions/uvc.usb0/streaming/header/h
cd functions/uvc.usb0/streaming/header/h
ln -s ../../uncompressed/u
cd ../../class/fs
ln -s ../../header/h
cd ../../class/hs
ln -s ../../header/h
cd ../../class/ss
ln -s ../../header/h
cd ../../../control
mkdir header/h
ln -s header/h class/fs
ln -s header/h class/hs
ln -s header/h class/ss
cd /sys/kernel/config/usb_gadget/g1
echo 1024 > functions/uvc.usb0/streaming_maxpacket
echo 15 > functions/uvc.usb0/streaming_maxburst
ln -s functions/uvc.usb0 configs/c.1

ls /sys/class/udc/ > /sys/kernel/config/usb_gadget/g1/UDC

/etc/init.d/S99uvc
ln: class/hs: Operation not permitted
[ 342.174711] configfs-gadget gadget: uvc: uvc_function_bind()
[ 342.180408] configfs-gadget gadget: uvc: Unable to allocate streaming EP
[ 342.187336] configfs-gadget musb-hdrc.1.auto: failed to start g1: -22

请问楼主解决了吗?我的也是一样的问题.

听风识雨 · 全志 SOC

https://github.com/wlhe/uvc-gadget

请问楼主这个项目加到 buildroot 应该怎么修改呢?

听风识雨 · VMWare/Linux/Ubuntu/Fedora/CentOS/U-BOOT

学习, 打算把 tiny200 的 ov2640 摄像头转为 uvc 摄像头.

听风识雨 · 全志 SOC

只要插OTG线连电脑就可以了.

QQ图片20201003165731.jpg

QQ截图20201003115326.png

QQ截图20201003133804.png

听风识雨 · 全志 SOC

基于aodzip大神的buildroot, 添加rndis/dhcpd/mjpg-streamer, 打造了tiny200"伪"网络摄像头

tf卡镜像下载: sysimage-sdcard.7z

1. usb配置成rndis了, linux启动后会出现一张网卡, windows需要装rndis驱动程序, tiny200 的ip地址是 192.168.7.1
电脑自动从tiny200开发板的 dhcpd服务器获取ip地址

2. tiny200已内置 mjpg-streamer 网络摄像头程序, 因为没有驱动jpeg硬件编码器, 所以帧率相当低, 差不多只有 1fps
地址 http://192.168.7.1:8080/

听风识雨 · NXP i.MX6UL/6ULL

这个插件不错

听风识雨 · 全志 SOC

对一下摄像头手册就知道了, 配置摄像头各种参数用的.

听风识雨 · 全志 SOC

估计是驱动勾选不同, 比如ADC什么的

听风识雨 · » 2020-09-11 10:19:28

QQ图片20200911101453.jpg

QQ图片20200911101456.jpg

刚刚试了一下停车场系统也是这么操作的，钱是直接到物业公司账户的，而不是停车场系统公司账户。

听风识雨 · » 2020-09-11 10:18:33

哇酷小二说：

听风识雨说：
我估计这 okbang 的盈利模式就是
⑴ 按月/年收取技术服务器
⑵ 按流水抽佣
但是我觉得⑴可能性比较大，因为 okbang 的系统应该不知道流水明细。
第三张图不就有物业费明细嘛，
然后微信的支付系统会推送支付成功或失败的信息，
所以获取流水没有问题。

嗯,有道理 ^_^

听风识雨 · » 2020-09-11 09:40:24

我们搞硬件的朋友也要这种思维，和互联网结合起来赚钱, 日夜不停赚钱。

听风识雨 · » 2020-09-11 09:39:45

我估计这 okbang 的盈利模式就是

⑴ 按月/年收取技术服务器
⑵ 按流水抽佣

但是我觉得⑴可能性比较大，因为 okbang 的系统应该不知道流水明细。

听风识雨 · » 2020-09-11 09:37:13

QQ图片20200911091713.jpg

最后付款，是自己的物业公司，而不是上面的 okbang 公司。

听风识雨 · » 2020-09-11 09:35:34

QQ图片20200911091706.jpg

物业费明细列表,

网址还是:

http://okbang.com.cn/wy-client/index.html?x0=0&x1=76&x2=XXXX&x3=202009&x4=YYY&SIGN=ZZZZZZZZZZZZZZ&fromtype=2&tszt=0

听风识雨 · » 2020-09-11 09:34:08

okbang20200219%20(1).jpg

打开他们主页就一张图, 其他啥也没有。

听风识雨 · » 2020-09-11 09:31:39

QQ图片20200911091702.jpg

这是我们物业公司交物业费的二维码, 扫一扫进入一个URL:

http://okbang.com.cn/wy-client/customer.html?source=XXXXX&fromtype=2&feetype=0&WYID=YY&openid=ZZZZZZZZZZZ&getstate=1

X Y Z 已经替代了隐私信息

这家公司就是专门替物业公司收费的:

http://okbang.com.cn

听风识雨 · VMWare/Linux/Ubuntu/Fedora/CentOS/U-BOOT

Ubuntu 与宿主机共享文件夹:

请问 VMWARE 15.5.2 + Ubuntu18.04 把本地硬盘映射过去，为什么每次开机都没有呢？每次重启虚拟机都要重新禁用/启用
http://whycan.cn/t_5173.html#p52523
(出处:哇酷开发者社区【VMWare/Linux/Ubuntu/Fedora/CentOS/U-BOOT】)

听风识雨 · VMWare/Linux/Ubuntu/Fedora/CentOS/U-BOOT

https://blog.csdn.net/nzyalj/article/details/80288340

ubuntu 16.04 不能与宿主机共享剪贴板, 用以下命令安装vmware tools就行:

sudo apt-get autoremove open-vm-tools
sudo apt-get install open-vm-tools
sudo apt-get install open-vm-tools-desktop

听风识雨 · 全志 SOC

我记得 u-boot 设置 bootargs 参数可以disable这个时间戳

听风识雨 · 计算机图形/GUI/RTOS/FileSystem/OpenGL/DirectX/SDL2

这个帖子操作很详细，感谢分享。

听风识雨 · 全志 SOC

主线上面有网友搞定了 drm, 应用层调用 libdrm 可以实现图层叠加。

听风识雨 · NXP i.MX6UL/6ULL

楼主MD用得炉火纯青

听风识雨 · VMWare/Linux/Ubuntu/Fedora/CentOS/U-BOOT

哇酷小二说：

https://kb.vmware.com/s/article/60262
把这个命令写到 /etc/rc.local 就行了，每次开机启动执行:

感谢站长，试过了，实在腻好用了, 妈妈再也不要担心我的共享文件夹不会开机挂载了。

听风识雨 · VMWare/Linux/Ubuntu/Fedora/CentOS/U-BOOT

请问我的 VMWARE 15.5.2 + Ubuntu18.04 把本地硬盘映射过去，

为什么每次开机都没有呢？每次重启虚拟机都要重新禁用/启用

听风识雨 · 全志 SOC

shaoxi2010 说：

你看看调试信息麻，写的很清楚，这个肯定找不到阿，要仔细点。
m25p80 spi0.0: mx25l25635e (32768 Kbytes)
mtdid=<spi32766.0> num_parts=<6>

听君一席话，胜读十年书。

等晕哥打赏功能完成给您在线打赏5元, 先把帐记上。

听风识雨 · 全志 SOC

感谢楼上的大哥, 从 u-boot bootargs 传入mtdparts 参数, 死活没搞定分区生成.

然后今天修改dts就终于可以生成分区了。

一直纳闷,为什么以前V3s用得好好得bootargs传入mtd现在不行了呢?

听风识雨 · 全志 SOC

u-boot设置的bootargs:

[ 0.000000] Kernel command line: console=ttyS0,115200 earlyprintk panic=5 rootwait mtdparts=spi32766.0:320k(uboot),320k(logob),320k(logoa),64k(dtb),5M(kernel),-(rootfs) root=31:5 rw rootfstype=jffs2 init=/linuxrc fbcon=map:1 vt.global_cursor_default=0

没有生成mtd分区:

[    0.953109] printk: console [ttyS0] enabled
[    0.971805] m25p80 spi0.0: mx25l25635e (32768 Kbytes)
[    0.980261] libphy: Fixed MDIO Bus: probed
[    0.984377] CAN device driver interface

打开 drivers/mtd/cmdlinepart.c 开启调试信息:

/* debug macro */
#if 1
#define dbg(x) do { printk("DEBUG-CMDLINE-PART: "); printk x; } while(0)
#else
#define dbg(x)
#endif

以下是带调试信息的log, 但是仍然没有生成mtd分区:

[    0.985974] m25p80 spi0.0: mx25l25635e (32768 Kbytes)
[    0.991106] DEBUG-CMDLINE-PART: 
[    0.991115] parsing <320k(uboot),320k(logob),320k(logoa),64k(dtb),5M(kernel),-(rootfs)>
[    1.002381] DEBUG-CMDLINE-PART: 
[    1.002395] partition 5: name <rootfs>, offset ffffffffffffffff, size ffffffffffffffff, mask flags 0
[    1.014769] DEBUG-CMDLINE-PART: 
[    1.014781] partition 4: name <kernel>, offset ffffffffffffffff, size 500000, mask flags 0
[    1.026284] DEBUG-CMDLINE-PART: 
[    1.026296] partition 3: name <dtb>, offset ffffffffffffffff, size 10000, mask flags 0
[    1.037451] DEBUG-CMDLINE-PART: 
[    1.037463] partition 2: name <logoa>, offset ffffffffffffffff, size 50000, mask flags 0
[    1.048809] DEBUG-CMDLINE-PART: 
[    1.048822] partition 1: name <logob>, offset ffffffffffffffff, size 50000, mask flags 0
[    1.060150] DEBUG-CMDLINE-PART: 
[    1.060162] partition 0: name <uboot>, offset ffffffffffffffff, size 50000, mask flags 0
[    1.071490] DEBUG-CMDLINE-PART: 
[    1.071497] mtdid=<spi32766.0> num_parts=<6>
[    1.082344] libphy: Fixed MDIO Bus: probed

听风识雨 · 全志 SOC

RK2918 方案的平板确实少见，看到最多的是全志方案。

听风识雨 · 全志 SOC

		simplefb_lcd: framebuffer@0 {
			compatible = "allwinner,simple-framebuffer",
				     "simple-framebuffer";
			allwinner,pipeline = "de0-lcd0";
			clocks = <&ccu CLK_BUS_TCON0>, <&display_clocks 0>,
				 <&display_clocks 6>, <&ccu CLK_TCON0>;
			status = "disabled";
		};

我看到你的这个用了 simplefb, 如果这个地方继承了u-boot的simplefb, 那么可以不需要drm了。

adozip大佬的帖子大概是这么说的

Widora TINY200 R2 体验版开源开发包，修复了大部分F1C100s/F1C200s的遗留问题
http://whycan.cn/t_5061.html#p51424
(出处:哇酷开发者社区【全志 V3S/F1C100s/X3】)

听风识雨 · 全志 SOC

你的设备树里面都没有 drm, 请问log里面的drm是怎么回事呢？

听风识雨 · 全志 SOC

这手工作业满分！

听风识雨 · Xilinx/Altera/FPGA/CPLD/Verilog

Zynq真是个神奇的芯片，能让人同时掉进FPGA和嵌入式两个坑。

听风识雨 · 计算机图形/GUI/RTOS/FileSystem/OpenGL/DirectX/SDL2

这工具真是 666666

WhyCan Forum(哇酷开发者社区)

#1 DIY/综合/Arduino/写字机/3D打印机/智能小车/平衡车/四轴飞行/MQTT/物联网 » 推荐一个免费好用的 pdf 转 word 网站 » 2021-07-27 08:59:26

#2 Re: 司徒开源 » 研究FC3000掌機的開源可行性 » 2021-07-13 16:12:39

#3 DIY/综合/Arduino/写字机/3D打印机/智能小车/平衡车/四轴飞行/MQTT/物联网 » 关于 xlog 加密处理分析 » 2021-04-26 10:17:23

#4 Re: VMWare/Linux/Ubuntu/Fedora/CentOS/U-BOOT » 记录一下常用易忘的Linux日常操作 » 2021-04-14 10:45:43

#5 Re: 技术人生/软件使用技巧/破解经验/技术吐槽/灌水 » 在线生成 logo 的网站 » 2020-12-30 22:15:00

#6 Re: 全志 SOC » 2020 最后一块 PCB, 2021 第一块 PCBA » 2020-12-30 22:08:32

#7 Re: 全志 SOC » V3s的2D测试程序 modetest 使用貌似有问题, 请各位大佬过来围观一下 » 2020-12-21 22:56:05

#8 Re: 全志 SOC » V3s的2D测试程序 modetest 使用貌似有问题, 请各位大佬过来围观一下 » 2020-12-21 22:55:33

#9 全志 SOC » V3s的2D测试程序 modetest 使用貌似有问题, 请各位大佬过来围观一下 » 2020-12-21 22:40:58

#10 Re: 全志 SOC » 求助 buildroot编译好了qt5，新建一个cmake工程，在cmake链接qt5的库出错，链接Ubuntu下qt5的库却没问题 » 2020-11-30 16:11:01

#11 Re: 全志 SOC » 求助！BUILDROOT 编译python3 OPENCV3到ARM上，imread出错 【100元悬赏解决方案，有效期至12月9日】 » 2020-11-30 16:04:29

#12 Re: 全志 SOC » 求助！BUILDROOT 编译python3 OPENCV3到ARM上，imread出错 【100元悬赏解决方案，有效期至12月9日】 » 2020-11-28 15:36:29

#13 Re: 全志 SOC » 求助！BUILDROOT 编译python3 OPENCV3到ARM上，imread出错 【100元悬赏解决方案，有效期至12月9日】 » 2020-11-28 15:30:24

#14 Re: VMWare/Linux/Ubuntu/Fedora/CentOS/U-BOOT » 发几个关于树莓派raspberrypi的buildroot修改 » 2020-11-26 08:55:54

#15 Re: 全志 SOC » 全志主线Linux UART串口使用8250驱动程序，但是没有实现RS485控制，有没有哪位打上了patch? » 2020-11-09 17:27:07

#16 Re: 全志 SOC » 请问大家f1c100s上执行libdrm测试程序modetest屏幕没有反应 » 2020-10-24 08:34:54

#17 Re: 全志 SOC » 请问大家f1c100s上执行libdrm测试程序modetest屏幕没有反应 » 2020-10-20 16:20:44

#18 Re: 全志 SOC » 请问大家f1c100s上执行libdrm测试程序modetest屏幕没有反应 » 2020-10-20 13:50:31

#19 Re: 全志 SOC » 请问大家f1c100s上执行libdrm测试程序modetest屏幕没有反应 » 2020-10-20 13:44:55

#20 全志 SOC » 请问大家f1c100s上执行libdrm测试程序modetest屏幕没有反应 » 2020-10-20 13:35:09

#21 技术人生/软件使用技巧/破解经验/技术吐槽/灌水 » 请问打印机配网之后, windows和linux都能自动识别, 这是什么原理呢? » 2020-10-18 18:10:05

#22 Re: 全志 SOC » 各位大侠, 现在的v3s主线内核， 是否支持gc0308 的摄像头 » 2020-10-11 17:20:16

#23 Re: 全志 SOC » 基于aodzip大神的buildroot, 添加rndis/dhcpd/mjpg-streamer, 打造了tiny200"伪"网络摄像头 » 2020-10-11 17:15:32

#24 Re: 全志 SOC » 各位大侠, 现在的v3s主线内核， 是否支持gc0308 的摄像头 » 2020-10-11 12:06:38

#25 Re: VMWare/Linux/Ubuntu/Fedora/CentOS/U-BOOT » 请教大家,如何设置buildroot可以生成目标平台gcc编译工具,我想直接ssh连到板上开发程序 » 2020-10-03 20:06:47

#26 Re: 全志 SOC » V3s Linux4.13执行modprobe g_webcam 出现端点错误, 是端点不够吗? 其他的 g_serial/g_ffs没问题 » 2020-10-03 20:02:50

#27 Re: 全志 SOC » V3s Linux4.13执行modprobe g_webcam 出现端点错误, 是端点不够吗? 其他的 g_serial/g_ffs没问题 » 2020-10-03 19:53:28

#28 Re: 全志 SOC » V3s Linux4.13执行modprobe g_webcam 出现端点错误, 是端点不够吗? 其他的 g_serial/g_ffs没问题 » 2020-10-03 19:41:27

#29 Re: 全志 SOC » V3s Linux4.13执行modprobe g_webcam 出现端点错误, 是端点不够吗? 其他的 g_serial/g_ffs没问题 » 2020-10-03 19:27:36

#30 Re: 全志 SOC » V3s Linux4.13执行modprobe g_webcam 出现端点错误, 是端点不够吗? 其他的 g_serial/g_ffs没问题 » 2020-10-03 19:24:35

#31 Re: 全志 SOC » V3s Linux4.13执行modprobe g_webcam 出现端点错误, 是端点不够吗? 其他的 g_serial/g_ffs没问题 » 2020-10-03 19:18:29

#32 Re: 全志 SOC » buildroot-tiny200 (F1C100/200s) 开发包近期更新内容 * 已支持DVP摄像头 *，支持SPI NAND » 2020-10-03 17:53:55

#33 Re: VMWare/Linux/Ubuntu/Fedora/CentOS/U-BOOT » 找到一篇关于Linux usb gadget 非常使用的说明和使用教程 » 2020-10-03 17:39:37

#34 Re: 全志 SOC » 基于aodzip大神的buildroot, 添加rndis/dhcpd/mjpg-streamer, 打造了tiny200"伪"网络摄像头 » 2020-10-03 13:45:53

#35 全志 SOC » 基于aodzip大神的buildroot, 添加rndis/dhcpd/mjpg-streamer, 打造了tiny200"伪"网络摄像头 » 2020-10-03 13:45:02

#36 Re: NXP i.MX6UL/6ULL » 开源一个mjpg-streamer输出插件：output_framebuffer » 2020-10-03 11:41:08

#37 Re: 全志 SOC » 请问一下，MIPI厂商给的屏的初始化指令，不知道是什么意思 » 2020-09-27 17:47:49

#38 Re: 全志 SOC » random: crng init done时间问题 » 2020-09-14 22:51:33

#39 Re: 技术人生/软件使用技巧/破解经验/技术吐槽/灌水 » 还是互联网的钱比较好赚, 开发一套系统，就可以日夜不停地收钱 » 2020-09-11 10:19:28

#40 Re: 技术人生/软件使用技巧/破解经验/技术吐槽/灌水 » 还是互联网的钱比较好赚, 开发一套系统，就可以日夜不停地收钱 » 2020-09-11 10:18:33

#41 Re: 技术人生/软件使用技巧/破解经验/技术吐槽/灌水 » 还是互联网的钱比较好赚, 开发一套系统，就可以日夜不停地收钱 » 2020-09-11 09:40:24

#42 Re: 技术人生/软件使用技巧/破解经验/技术吐槽/灌水 » 还是互联网的钱比较好赚, 开发一套系统，就可以日夜不停地收钱 » 2020-09-11 09:39:45

#43 Re: 技术人生/软件使用技巧/破解经验/技术吐槽/灌水 » 还是互联网的钱比较好赚, 开发一套系统，就可以日夜不停地收钱 » 2020-09-11 09:37:13

#44 Re: 技术人生/软件使用技巧/破解经验/技术吐槽/灌水 » 还是互联网的钱比较好赚, 开发一套系统，就可以日夜不停地收钱 » 2020-09-11 09:35:34

#45 Re: 技术人生/软件使用技巧/破解经验/技术吐槽/灌水 » 还是互联网的钱比较好赚, 开发一套系统，就可以日夜不停地收钱 » 2020-09-11 09:34:08

#46 技术人生/软件使用技巧/破解经验/技术吐槽/灌水 » 还是互联网的钱比较好赚, 开发一套系统，就可以日夜不停地收钱 » 2020-09-11 09:31:39

#47 Re: VMWare/Linux/Ubuntu/Fedora/CentOS/U-BOOT » 《VMWare 使用分享》之三 "磁盘压缩" (disk shrink) 编写中... » 2020-09-06 17:54:30

#48 Re: VMWare/Linux/Ubuntu/Fedora/CentOS/U-BOOT » 《VMWare 使用分享》之三 "磁盘压缩" (disk shrink) 编写中... » 2020-09-06 17:53:24

#49 Re: 全志 SOC » linux驱动开发的printk打印怎么设置不打印时间戳？ » 2020-09-06 12:58:35

#50 Re: 计算机图形/GUI/RTOS/FileSystem/OpenGL/DirectX/SDL2 » 利用QT 调试LittleVGL 模拟器环境搭建 » 2020-08-27 22:46:59

#51 Re: 全志 SOC » 有人知道100s的图层融合怎么用吗 » 2020-08-27 22:45:21

#52 Re: NXP i.MX6UL/6ULL » [正点原子i.MX6UL] v4l2+framebuffer预览USB摄像头(番外篇)：framebuffer双缓冲消灭撕裂测试 » 2020-08-27 22:44:12

#53 Re: VMWare/Linux/Ubuntu/Fedora/CentOS/U-BOOT » 请问 VMWARE 15.5.2 + Ubuntu18.04 把本地硬盘映射过去，为什么每次开机都没有呢？每次重启虚拟机都要重新禁用/启用 » 2020-08-27 10:22:59

#54 VMWare/Linux/Ubuntu/Fedora/CentOS/U-BOOT » 请问 VMWARE 15.5.2 + Ubuntu18.04 把本地硬盘映射过去，为什么每次开机都没有呢？每次重启虚拟机都要重新禁用/启用 » 2020-08-27 09:47:49

#55 Re: 全志 SOC » A33 主线 Linux4.20, u-boot传入spi flash分区参数, 请教各位网友. » 2020-08-24 10:51:01

#56 Re: 全志 SOC » A33 主线 Linux4.20, u-boot传入spi flash分区参数, 请教各位网友. » 2020-08-23 11:57:28

#57 全志 SOC » A33 主线 Linux4.20, u-boot传入spi flash分区参数, 请教各位网友. » 2020-08-22 16:31:59

#58 Re: 全志 SOC » 拆一个台电的平板 » 2020-08-21 09:08:18

#59 Re: 全志 SOC » 请教licheepi-zero使用4.19内核，LCD显示不正常 » 2020-08-17 09:30:42

#60 Re: 全志 SOC » 请教licheepi-zero使用4.19内核，LCD显示不正常 » 2020-08-17 08:59:06

#61 Re: 全志 SOC » F1C200S-PDA 存储器EMMC测试 » 2020-08-15 08:46:40

#62 Re: Xilinx/Altera/FPGA/CPLD/Verilog » zynq7010/7020核心板众筹openzynq » 2020-08-15 08:46:14

#63 Re: 计算机图形/GUI/RTOS/FileSystem/OpenGL/DirectX/SDL2 » LvglFontTool字体工具更新V0.4版本 » 2020-08-15 08:44:51

页脚

#11 Re: 全志 SOC » 求助！BUILDROOT 编译python3 OPENCV3到ARM上，imread出错【100元悬赏解决方案，有效期至12月9日】 » 2020-11-30 16:04:29

#12 Re: 全志 SOC » 求助！BUILDROOT 编译python3 OPENCV3到ARM上，imread出错【100元悬赏解决方案，有效期至12月9日】 » 2020-11-28 15:36:29

#13 Re: 全志 SOC » 求助！BUILDROOT 编译python3 OPENCV3到ARM上，imread出错【100元悬赏解决方案，有效期至12月9日】 » 2020-11-28 15:30:24

#22 Re: 全志 SOC » 各位大侠, 现在的v3s主线内核，是否支持gc0308 的摄像头 » 2020-10-11 17:20:16

#24 Re: 全志 SOC » 各位大侠, 现在的v3s主线内核，是否支持gc0308 的摄像头 » 2020-10-11 12:06:38