i2c_xfer
.master_xfer = i2c_xfer,
i2c_xfer(&dev->i2c_bus[2].i2c_adap, &msg, 1);
.master_xfer = i2c_xfer,
i2c_xfer(&dev->i2c_bus[0].i2c_adap, &msg, 1);
i2c_xfer(client->adapter, msgs, 2);
retval = i2c_xfer(client->adapter, msgs, 1);
.master_xfer = i2c_xfer,
.master_xfer = i2c_xfer,
i2c_if->i2c_xfer = xgbe_i2c_xfer;
return pdata->i2c_if.i2c_xfer(pdata, i2c_op);
int (*i2c_xfer)(struct xgbe_prv_data *, struct xgbe_i2c_op *);