On 09/04/15 12:56, Hans Verkuil wrote:
> Laurent, can you review this?
Ping! If I have an Ack on Monday at the latest, then I can make a pull request
for this series before I leave for 2 1/2 weeks.
Regards,
Hans
>
> Regards,
>
> Hans
>
> On 08/21/2015 03:19 PM, Ricardo Ribalda Delgado wrote:
>> This driver does not use the control infrastructure.
>> Add support for the new field which on structure
>> v4l2_ext_controls
>>
>> Signed-off-by: Ricardo Ribalda Delgado <ricardo.riba...@gmail.com>
>> ---
>> drivers/media/usb/uvc/uvc_v4l2.c | 14 +++++++++++++-
>> 1 file changed, 13 insertions(+), 1 deletion(-)
>>
>> diff --git a/drivers/media/usb/uvc/uvc_v4l2.c
>> b/drivers/media/usb/uvc/uvc_v4l2.c
>> index 2764f43607c1..e6d3a1bcfa2f 100644
>> --- a/drivers/media/usb/uvc/uvc_v4l2.c
>> +++ b/drivers/media/usb/uvc/uvc_v4l2.c
>> @@ -980,6 +980,7 @@ static int uvc_ioctl_g_ext_ctrls(struct file *file, void
>> *fh,
>> struct uvc_fh *handle = fh;
>> struct uvc_video_chain *chain = handle->chain;
>> struct v4l2_ext_control *ctrl = ctrls->controls;
>> + struct v4l2_queryctrl qc;
>> unsigned int i;
>> int ret;
>>
>> @@ -988,7 +989,14 @@ static int uvc_ioctl_g_ext_ctrls(struct file *file,
>> void *fh,
>> return ret;
>>
>> for (i = 0; i < ctrls->count; ++ctrl, ++i) {
>> - ret = uvc_ctrl_get(chain, ctrl);
>> + if (ctrls->which == V4L2_CTRL_WHICH_DEF_VAL) {
>> + qc.id = ctrl->id;
>> + ret = uvc_query_v4l2_ctrl(chain, &qc);
>> + if (!ret)
>> + ctrl->value = qc.default_value;
>> + } else
>> + ret = uvc_ctrl_get(chain, ctrl);
>> +
>> if (ret < 0) {
>> uvc_ctrl_rollback(handle);
>> ctrls->error_idx = i;
>> @@ -1010,6 +1018,10 @@ static int uvc_ioctl_s_try_ext_ctrls(struct uvc_fh
>> *handle,
>> unsigned int i;
>> int ret;
>>
>> + /* Default value cannot be changed */
>> + if (ctrls->which == V4L2_CTRL_WHICH_DEF_VAL)
>> + return -EINVAL;
>> +
>> ret = uvc_ctrl_begin(chain);
>> if (ret < 0)
>> return ret;
>>
>
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