diff options
| author | Ricardo Ribalda <ricardo.ribalda@gmail.com> | 2015-10-29 11:10:31 +0100 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@osg.samsung.com> | 2015-11-17 17:46:44 +0100 |
| commit | 082afb7c4ee6ce0c1c0451816bf2c5a747fc51b1 (patch) | |
| tree | 2f48e6824122fd8012d039db21bc6f79929772a2 /drivers/media/usb/pvrusb2 | |
| parent | [media] usb/uvc: Support for V4L2_CTRL_WHICH_DEF_VAL (diff) | |
| download | linux-082afb7c4ee6ce0c1c0451816bf2c5a747fc51b1.tar.xz linux-082afb7c4ee6ce0c1c0451816bf2c5a747fc51b1.zip | |
[media] media/usb/pvrusb2: Support for V4L2_CTRL_WHICH_DEF_VAL
This driver does not use the control infrastructure.
Add support for the new field which on structure
v4l2_ext_controls
Acked-by: Mike Isely <isely@pobox.com>
Signed-off-by: Ricardo Ribalda Delgado <ricardo.ribalda@gmail.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
Diffstat (limited to 'drivers/media/usb/pvrusb2')
| -rw-r--r-- | drivers/media/usb/pvrusb2/pvrusb2-v4l2.c | 16 |
1 files changed, 14 insertions, 2 deletions
diff --git a/drivers/media/usb/pvrusb2/pvrusb2-v4l2.c b/drivers/media/usb/pvrusb2/pvrusb2-v4l2.c index 1c5f85bf7ed4..81f788b7b242 100644 --- a/drivers/media/usb/pvrusb2/pvrusb2-v4l2.c +++ b/drivers/media/usb/pvrusb2/pvrusb2-v4l2.c @@ -628,6 +628,7 @@ static int pvr2_g_ext_ctrls(struct file *file, void *priv, struct pvr2_v4l2_fh *fh = file->private_data; struct pvr2_hdw *hdw = fh->channel.mc_head->hdw; struct v4l2_ext_control *ctrl; + struct pvr2_ctrl *cptr; unsigned int idx; int val; int ret; @@ -635,8 +636,15 @@ static int pvr2_g_ext_ctrls(struct file *file, void *priv, ret = 0; for (idx = 0; idx < ctls->count; idx++) { ctrl = ctls->controls + idx; - ret = pvr2_ctrl_get_value( - pvr2_hdw_get_ctrl_v4l(hdw, ctrl->id), &val); + cptr = pvr2_hdw_get_ctrl_v4l(hdw, ctrl->id); + if (cptr) { + if (ctls->which == V4L2_CTRL_WHICH_DEF_VAL) + pvr2_ctrl_get_def(cptr, &val); + else + ret = pvr2_ctrl_get_value(cptr, &val); + } else + ret = -EINVAL; + if (ret) { ctls->error_idx = idx; return ret; @@ -658,6 +666,10 @@ static int pvr2_s_ext_ctrls(struct file *file, void *priv, unsigned int idx; int ret; + /* Default value cannot be changed */ + if (ctls->which == V4L2_CTRL_WHICH_DEF_VAL) + return -EINVAL; + ret = 0; for (idx = 0; idx < ctls->count; idx++) { ctrl = ctls->controls + idx; |