Linux下V4L2拍照测试用例

一、源码test.c #include #include #include #include int main(){ ////// int fd = open(/dev/video0,O_RDWR); printf(TK——->>>fd is %d ,fd); ////// struct v4l2_capability cap; ioctl(fd,VIDIOC_QUERYCAP,∩); printf(TK———->>