public void SetControlValue(Control ctrl, int value) {
v4l2_control cur = new v4l2_control();
cur.id = (uint)ctrl;
cur.value = value;
int ret = ioControl.SetControl(ref cur);
if(ret < 0) { throw new Exception("VIDIOC_S_CTRL: " + ret.ToString()); }
}
ioctl(int device, v4l2_operation request, ref v4l2_control argp);
public int GetControlValue(Control ctrl) {
v4l2_control cur = new v4l2_control();
cur.id = (uint)ctrl;
int ret = ioControl.GetControl(ref cur);
if(ret < 0) { throw new Exception("VIDIOC_G_CTRL: " + ret.ToString()); }
return cur.value;
}
/// <summary>
/// Calls VIDIOC_S_CTRL.
/// </summary>
public int SetControl(ref v4l2_control control)
{
return ioctl(deviceHandle, v4l2_operation.SetControl, ref control);
}
public int SetControl(ref v4l2_control control)
{
return -1; // FIXME: Unimplemented;
}
public void SetControlValue(Control ctrl, int value)
{
v4l2_control cur = new v4l2_control();
cur.id = (uint)ctrl;
cur.value = value;
if (ioControl.SetControl(ref cur) < 0)
throw new Exception("VIDIOC_S_CTRL");
}
public int GetControlValue(Control ctrl)
{
v4l2_control cur = new v4l2_control();
cur.id = (uint)ctrl;
if (ioControl.GetControl(ref cur) < 0)
throw new Exception("VIDIOC_G_CTRL");
return cur.value;
}
private static extern int ioctl(int device, v4l2_operation request, ref v4l2_control argp);