QNAP_MCU_CHECKSUM_SIZE
return (size == QNAP_MCU_ERROR_SIZE + QNAP_MCU_CHECKSUM_SIZE);
size_t length = reply_data_size + QNAP_MCU_CHECKSUM_SIZE;
(QNAP_MCU_MAX_DATA_SIZE + QNAP_MCU_CHECKSUM_SIZE)
(QNAP_MCU_MAX_CMD_SIZE + QNAP_MCU_CHECKSUM_SIZE)
u8 crc = qnap_mcu_csum(buf, size - QNAP_MCU_CHECKSUM_SIZE);
return crc == buf[size - QNAP_MCU_CHECKSUM_SIZE];
size_t length = data_size + QNAP_MCU_CHECKSUM_SIZE;