check_byte 396 sound/usb/caiaq/audio.c unsigned char check_byte; check_byte 408 sound/usb/caiaq/audio.c check_byte = MAKE_CHECKBYTE(cdev, stream, i); check_byte 410 sound/usb/caiaq/audio.c if ((usb_buf[i] & 0x3f) != check_byte)