diff options
Diffstat (limited to 'drivers/media/video/videodev.c')
| -rw-r--r-- | drivers/media/video/videodev.c | 14 |
1 files changed, 13 insertions, 1 deletions
diff --git a/drivers/media/video/videodev.c b/drivers/media/video/videodev.c index f45c625a92f4..db4bee842745 100644 --- a/drivers/media/video/videodev.c +++ b/drivers/media/video/videodev.c @@ -438,6 +438,12 @@ static int __video_do_ioctl(struct inode *inode, struct file *file, } #ifdef CONFIG_VIDEO_V4L1_COMPAT + /*********************************************************** + Handles calls to the obsoleted V4L1 API + Due to the nature of VIDIOCGMBUF, each driver that supports + V4L1 should implement its own handler for this ioctl. + ***********************************************************/ + /* --- streaming capture ------------------------------------- */ if (cmd == VIDIOCGMBUF) { struct video_mbuf *p=arg; @@ -453,11 +459,17 @@ static int __video_do_ioctl(struct inode *inode, struct file *file, (unsigned long)p->offsets); return ret; } -#endif + /******************************************************** + All other V4L1 calls are handled by v4l1_compat module. + Those calls will be translated into V4L2 calls, and + __video_do_ioctl will be called again, with one or more + V4L2 ioctls. + ********************************************************/ if (_IOC_TYPE(cmd)=='v') return v4l_compat_translate_ioctl(inode,file,cmd,arg, __video_do_ioctl); +#endif switch(cmd) { /* --- capabilities ------------------------------------------ */ |