/* Fill in the fields of a v4l2_standard structure according to the
'id' and 'transmission' parameters. Returns negative on error. */
int v4l2_video_std_construct(struct v4l2_standard *vs,
int id, const char *name)
{
vs->id = id;
v4l2_video_std_frame_period(id, &vs->frameperiod);
vs->framelines = (id & V4L2_STD_525_60) ? 525 : 625;
strlcpy(vs->name, name, sizeof(vs->name));
return 0;
}
static int vidioc_g_parm(struct file *file, void *fh,
struct v4l2_streamparm *parm)
{
struct saa7146_dev *dev = ((struct saa7146_fh *)fh)->dev;
struct saa7146_vv *vv = dev->vv_data;
parm->parm.capture.readbuffers = 1;
v4l2_video_std_frame_period(vv->standard->id,
&parm->parm.capture.timeperframe);
return 0;
}
static int vidioc_g_parm(struct file *file, void *fh,
struct v4l2_streamparm *parm)
{
struct saa7146_dev *dev = ((struct saa7146_fh *)fh)->dev;
struct saa7146_vv *vv = dev->vv_data;
if (parm->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
return -EINVAL;
parm->parm.capture.readbuffers = 1;
v4l2_video_std_frame_period(vv->standard->id,
&parm->parm.capture.timeperframe);
return 0;
}