pub unsafe extern "C" fn PhidgetPowerGuard_getMaxOverVoltage(
ch: PhidgetPowerGuardHandle,
maxOverVoltage: *mut f64,
) -> PhidgetReturnCodepub unsafe extern "C" fn PhidgetPowerGuard_getMaxOverVoltage(
ch: PhidgetPowerGuardHandle,
maxOverVoltage: *mut f64,
) -> PhidgetReturnCode