Livt.Usb

src/hid/BootKeyboardBinding.lvt

namespace Livt.Usb.Hid

/**
 * Excludes known auxiliary interfaces that advertise the boot-keyboard class.
 * Standard class, direction and endpoint checks remain in BootKeyboardHost.
 * Keep device exceptions here so generic enumeration and transfer logic stay shared.
 */
component BootKeyboardBinding
{
	// Known Rapoo receivers: interface 1 carries auxiliary controls; 2 carries keys.
	const RAPOO_9300M: logic[32] = 0x24AE2013
	const RAPOO_RECEIVER_2010: logic[32] = 0x24AE2010
	const RAPOO_AUXILIARY_INTERFACE: int = 1

	/**
	 * Accepts a validated interface unless a documented device exception excludes it.
	 * Identity packs VID in the upper half and PID in the lower half. The caller
	 * supplies the descriptor's interface number, not its table index or endpoint.
	 * 2013 evidence: https://github.com/tmk/tmk_keyboard/issues/764
	 * 2010 identity was read on the board; Linux receiver logs identify interface 2:
	 * https://forums.raspberrypi.com/viewtopic.php?t=240314
	 */
	public static fn AcceptsInterface[](identity: logic[32], interfaceNumber: int) bool
	{
		return (identity != RAPOO_9300M && identity != RAPOO_RECEIVER_2010)
			|| interfaceNumber != RAPOO_AUXILIARY_INTERFACE
	}
}