static int pca954x_reg_write(struct i2c_adapter *adap,
struct i2c_client *client, u8 val)
{
- int ret = -ENODEV;
-
- if (adap->algo->master_xfer) {
- struct i2c_msg msg;
- char buf[1];
-
- msg.addr = client->addr;
- msg.flags = 0;
- msg.len = 1;
- buf[0] = val;
- msg.buf = buf;
- ret = __i2c_transfer(adap, &msg, 1);
-
- if (ret >= 0 && ret != 1)
- ret = -EREMOTEIO;
- } else {
- union i2c_smbus_data data;
- ret = adap->algo->smbus_xfer(adap, client->addr,
- client->flags,
- I2C_SMBUS_WRITE,
- val, I2C_SMBUS_BYTE, &data);
- }
+ union i2c_smbus_data dummy;
- return ret;
+ return __i2c_smbus_xfer(adap, client->addr, client->flags,
+ I2C_SMBUS_WRITE, val,
+ I2C_SMBUS_BYTE, &dummy);
}
static int pca954x_select_chan(struct i2c_mux_core *muxc, u32 chan)