移植韦东山老师真实项目到x210板之一UVC摄像头显示到LCD

虽然韦东山老师项目是jz440的，但是只要LCD的/dev/fd0 以及uvc摄像头/dev/video3(我的是3)的设备存在，应用就不要修改

注意：这里是UVC摄像头，在内核里面已经有驱动（/drivers/media/video/uvc）所以usb摄像头一插上，就会系统自动找到对应uvc驱动，生成/dev/video3

代码路径：https://github.com/jimingkang/news5pv210/tree/master/study/weidongshan/video2lcd

具体细节参考：https://blog.****.net/ap105638/category_1378830.html

 

 

1）编译libjpeg-turbo-1.3.0.tar.gz

>./configure --host=arm-none-linux-gnueabi CC=arm-none-linux-gnueabi-gcc AR=arm-none-linux-gnueabi-ar   STRIP=arm-linux-gnueabi-strip RANLIB=arm-none-linux-gnueabi-ranlib

>make 

>make install （默认到/opt/libjpeg-turbo/lib)

>sudo cp libjpeg-turbo-1.3.0/*.h  news5pv210/tree/master/study/weidongshan/video2lcd/include(为了编译video2lcd方便)

>sudo cp /opt/libjpeg-turbo/lib/* /tftpboot/nfs/lib/  (为了运行video2lcd)

2）编译video2lcd

》make

>sudo cp video2lcd /tftpboot/nfs/driver_test2/

 

3)插入camera，显示：

 usb 1-1.4: Product: USB 2.0 Camera
[ 1992.560907] usb 1-1.4: Manufacturer: HD Camera Manufacturer
[ 1992.571664] uvcvideo: Found UVC 1.00 device USB 2.0 Camera (05a3:9230)
[ 1992.623043] input: USB 2.0 Camera as /devices/platform/s5p-ehci/usb1/1-1/1-1.4/1-1.4:1.0/input/input5

4)运行：

 ./video2lcd  /dev/video3
/dev/video3 supports streaming i/o
Convert mjpeg2rgb, ret = 0