diff options
Diffstat (limited to 'drivers/media/video/videodev.c')
| -rw-r--r-- | drivers/media/video/videodev.c | 26 |
1 files changed, 23 insertions, 3 deletions
diff --git a/drivers/media/video/videodev.c b/drivers/media/video/videodev.c index 26e7ea2..479a067 100644 --- a/drivers/media/video/videodev.c +++ b/drivers/media/video/videodev.c @@ -1283,9 +1283,29 @@ static int __video_do_ioctl(struct inode *inode, struct file *file, case VIDIOC_G_PARM: { struct v4l2_streamparm *p=arg; - if (!vfd->vidioc_g_parm) - break; - ret=vfd->vidioc_g_parm(file, fh, p); + if (vfd->vidioc_g_parm) { + ret=vfd->vidioc_g_parm(file, fh, p); + } else { + struct v4l2_standard s; + + if (!vfd->tvnormsize) { + printk (KERN_WARNING "%s: no TV norms defined!\n", + vfd->name); + break; + } + + if (p->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) + return -EINVAL; + + v4l2_video_std_construct(&s, vfd->tvnorms[vfd->current_norm].id, + vfd->tvnorms[vfd->current_norm].name); + + memset(p,0,sizeof(*p)); + + p->parm.capture.timeperframe = s.frameperiod; + ret=0; + } + dbgarg (cmd, "type=%d\n", p->type); break; } |
