CMD_RET_ACK
CMD_RET_ACK,
[CMD_RET_ACK] = "RET_ACK",
i2c->at_t_done = (cmd == CMD_RET_DATA || cmd == CMD_RET_ACK);
[CMD_RET_ACK] = LINESTAT_ACK_DET | LINESTAT_NACK_DET,
next_cmd = CMD_RET_ACK;
case CMD_RET_ACK: