diff options
Diffstat (limited to 'drivers/media/video/uvc/uvc_v4l2.c')
| -rw-r--r-- | drivers/media/video/uvc/uvc_v4l2.c | 23 |
1 files changed, 21 insertions, 2 deletions
diff --git a/drivers/media/video/uvc/uvc_v4l2.c b/drivers/media/video/uvc/uvc_v4l2.c index 74323362c8e..2e2a556d166 100644 --- a/drivers/media/video/uvc/uvc_v4l2.c +++ b/drivers/media/video/uvc/uvc_v4l2.c @@ -538,6 +538,20 @@ static int uvc_v4l2_release(struct file *file) return 0; } +static void uvc_v4l2_ioctl_warn(void) +{ + static int warned; + + if (warned) + return; + + uvc_printk(KERN_INFO, "Deprecated UVCIOC_CTRL_{ADD,MAP_OLD,GET,SET} " + "ioctls will be removed in 2.6.42.\n"); + uvc_printk(KERN_INFO, "See http://www.ideasonboard.org/uvc/upgrade/ " + "for upgrade instructions.\n"); + warned = 1; +} + static long uvc_v4l2_do_ioctl(struct file *file, unsigned int cmd, void *arg) { struct video_device *vdev = video_devdata(file); @@ -1018,12 +1032,16 @@ static long uvc_v4l2_do_ioctl(struct file *file, unsigned int cmd, void *arg) uvc_trace(UVC_TRACE_IOCTL, "Unsupported ioctl 0x%08x\n", cmd); return -EINVAL; - /* Dynamic controls. */ + /* Dynamic controls. UVCIOC_CTRL_ADD, UVCIOC_CTRL_MAP_OLD, + * UVCIOC_CTRL_GET and UVCIOC_CTRL_SET are deprecated and scheduled for + * removal in 2.6.42. + */ case UVCIOC_CTRL_ADD: - /* Legacy ioctl, kept for API compatibility reasons */ + uvc_v4l2_ioctl_warn(); return -EEXIST; case UVCIOC_CTRL_MAP_OLD: + uvc_v4l2_ioctl_warn(); case UVCIOC_CTRL_MAP: return uvc_ioctl_ctrl_map(chain, arg, cmd == UVCIOC_CTRL_MAP_OLD); @@ -1041,6 +1059,7 @@ static long uvc_v4l2_do_ioctl(struct file *file, unsigned int cmd, void *arg) .data = xctrl->data, }; + uvc_v4l2_ioctl_warn(); return uvc_xu_ctrl_query(chain, &xqry); } |