pub unsafe extern "C" fn QTMSP_NotifyTopLcdPowerOff() -> ResultExpand description
Called by GSP’s LCD driver during top LCD power-on to signal to QTM that it needs to
switch the parallax barrier state to a 2D state (all-transparent mask). Causes QTM’s
expander thread to exit, relinquishing its i2c::QTM session with it.
§Returns
Always 0 (success).