Bool_t MVideo::WriteControl	(	MVideoCtrl &	vctrl,
		Int_t	val
	)		const

Definition at line 286 of file MVideo.cc.

References MVideoCtrl::fId, MVideoCtrl::fMaximum, MVideoCtrl::fMinimum, MVideoCtrl::fName, MVideoCtrl::fValue, gLog, and Ioctl().

Referenced by ResetControl(), and SetControls().

{
    if (val<vctrl.fMinimum)
    {
        gLog << err << "ERROR - Value of " << val << " below minimum of " << vctrl.fMinimum << " for " << vctrl.fName << endl;
        return kFALSE;
    }

    if (val>vctrl.fMaximum)
    {
        gLog << err << "ERROR - Value of " << val << " above maximum of " << vctrl.fMaximum << " for " << vctrl.fName << endl;
        return kFALSE;
    }

    struct v4l2_control ctrl = { vctrl.fId, val };
    if (Ioctl(VIDIOC_S_CTRL, &ctrl)==-1)
        return kFALSE;

    vctrl.fValue = val;

    return kTRUE;
}

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