DP_AUX_I2C_WRITE_STATUS_UPDATE
(msg->request & DP_AUX_I2C_WRITE_STATUS_UPDATE) != 0;
msg->request |= DP_AUX_I2C_WRITE_STATUS_UPDATE;
case DP_AUX_I2C_WRITE_STATUS_UPDATE:
case DP_AUX_I2C_WRITE_STATUS_UPDATE: