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[media] pvrusb2: implement VIDIOC_QUERYSTD

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Acked-by: Mike Isely <isely@pobox.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
This commit is contained in:
Mauro Carvalho Chehab 2011-10-03 12:22:28 -03:00
parent b728666ba5
commit 7383a47395
3 changed files with 17 additions and 0 deletions
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7
drivers/media/video/pvrusb2/pvrusb2-hdw.c
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@ -2993,6 +2993,13 @@ static void pvr2_subdev_set_control(struct pvr2_hdw *hdw, int id,
pvr2_subdev_set_control(hdw, id, #lab, (hdw)->lab##_val); \
}
int pvr2_hdw_get_detected_std(struct pvr2_hdw *hdw, v4l2_std_id *std)
{
v4l2_device_call_all(&hdw->v4l2_dev, 0,
video, querystd, std);
return 0;
}
/* Execute whatever commands are required to update the state of all the
sub-devices so that they match our current control values. */
static void pvr2_subdev_update(struct pvr2_hdw *hdw)

3
drivers/media/video/pvrusb2/pvrusb2-hdw.h
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@ -214,6 +214,9 @@ struct pvr2_stream *pvr2_hdw_get_video_stream(struct pvr2_hdw *);
int pvr2_hdw_get_stdenum_value(struct pvr2_hdw *hdw,struct v4l2_standard *std,
unsigned int idx);
/* Get the detected video standard */
int pvr2_hdw_get_detected_std(struct pvr2_hdw *hdw, v4l2_std_id *std);
/* Enable / disable retrieval of CPU firmware or prom contents. This must
be enabled before pvr2_hdw_cpufw_get() will function. Note that doing
this may prevent the device from running (and leaving this mode may

7
drivers/media/video/pvrusb2/pvrusb2-v4l2.c
View File

@ -227,6 +227,13 @@ static long pvr2_v4l2_do_ioctl(struct file *file, unsigned int cmd, void *arg)
break;
}
case VIDIOC_QUERYSTD:
{
v4l2_std_id *std = arg;
ret = pvr2_hdw_get_detected_std(hdw, std);
break;
}
case VIDIOC_G_STD:
{
int val = 0;