diff options
| author |   Mauro Carvalho Chehab <mchehab@infradead.org> | 2007-05-01 08:55:00 -0300 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@infradead.org> | 2007-05-09 10:12:29 -0300 |
| commit | 452c0fb46b1d68b1dae37cea7ccebd70a80397e4 (patch) | |
| tree | e0d8a5eb7e6b0c9452be66c9ef72b1e26e1fc956 /drivers/media/video | |
| parent | V4L/DVB (5568): VIDIOCGMBUF handling in video_ioctl2() (diff) | |
| download | linux-dev-452c0fb46b1d68b1dae37cea7ccebd70a80397e4.tar.xz linux-dev-452c0fb46b1d68b1dae37cea7ccebd70a80397e4.zip | |
V4L/DVB (5569): Fix: v4l1_compat should be called only if V4L1_COMPAT
Added also some explanations about V4L1 handling
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
Diffstat (limited to 'drivers/media/video')
| -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 ------------------------------------------ */ |