IQS5XX_BL_CMD_CRC
case IQS5XX_BL_CMD_CRC:
if (bl_cmd == IQS5XX_BL_CMD_CRC && *mbuf != IQS5XX_BL_CRC_PASS) {
error = iqs5xx_bl_cmd(client, IQS5XX_BL_CMD_CRC, 0);