dev_dbg(&client->adapter->dev, "%s: cmd=%d\n", __FUNCTION__, cmd);
dev_dbg(&client->dev, "%s: cmd=%d\n", __FUNCTION__, cmd);
static int ds1337_command(struct i2c_client *client, unsigned int cmd,			  void *arg){	dev_dbg(&client->adapter->dev, "%s: cmd=%d\n", __FUNCTION__, cmd);	switch (cmd) {	case DS1337_GET_DATE:		return ds1337_get_datetime(client, arg);	case DS1337_SET_DATE:		return ds1337_set_datetime(client, arg);	default:		return -EINVAL;	}}