USBLP_LAST_PROTOCOL
#define USBLP_MAX_PROTOCOLS (USBLP_LAST_PROTOCOL+1)
ifd->desc.bInterfaceProtocol > USBLP_LAST_PROTOCOL)
proto_bias <= USBLP_LAST_PROTOCOL &&
if (protocol < USBLP_FIRST_PROTOCOL || protocol > USBLP_LAST_PROTOCOL)
for (p = USBLP_FIRST_PROTOCOL; p <= USBLP_LAST_PROTOCOL; p++) {
i <= USBLP_LAST_PROTOCOL; i++) {