atmel_i2c_send_receive
ret = atmel_i2c_send_receive(ctx->client, cmd);
EXPORT_SYMBOL(atmel_i2c_send_receive);
status = atmel_i2c_send_receive(client, cmd);
ret = atmel_i2c_send_receive(client, cmd);
int atmel_i2c_send_receive(struct i2c_client *client, struct atmel_i2c_cmd *cmd);
ret = atmel_i2c_send_receive(client, &cmd);
ret = atmel_i2c_send_receive(i2c_priv->client, &cmd);