VIDIOC_G_FBUF
v4l2_disable_ioctl(&dev->vid_out_dev, VIDIOC_G_FBUF);
return VIDIOC_G_FBUF;
SET_VALID_IOCTL(ops, VIDIOC_G_FBUF, vidioc_g_fbuf);
IOCTL_INFO(VIDIOC_G_FBUF, v4l_stub_g_fbuf, v4l_print_framebuffer, 0),