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authorRicardo Ribalda <ricardo.ribalda@gmail.com>2015-10-29 08:10:31 -0200
committerMauro Carvalho Chehab <mchehab@osg.samsung.com>2015-11-17 14:46:44 -0200
commit082afb7c4ee6ce0c1c0451816bf2c5a747fc51b1 (patch)
tree2f48e6824122fd8012d039db21bc6f79929772a2 /drivers/media/usb
parent91739838a5860a24863d76ab8cb10e15f10b3fc1 (diff)
[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')
-rw-r--r--drivers/media/usb/pvrusb2/pvrusb2-v4l2.c16
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;

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