pub unsafe extern "C" fn Phidget_getDeviceChannelCount(
ch: PhidgetHandle,
cls: Phidget_ChannelClass,
count: *mut u32,
) -> PhidgetReturnCodepub unsafe extern "C" fn Phidget_getDeviceChannelCount(
ch: PhidgetHandle,
cls: Phidget_ChannelClass,
count: *mut u32,
) -> PhidgetReturnCode