vidioc_s_jpegcomp
.vidioc_s_jpegcomp = vidioc_s_jpegcomp,
.vidioc_s_jpegcomp = vidioc_s_jpegcomp,
SET_VALID_IOCTL(ops, VIDIOC_S_JPEGCOMP, vidioc_s_jpegcomp);
int (*vidioc_s_jpegcomp)(struct file *file, void *priv,