# PHY config change

- From: Bishop, Mark \<hidden\>
- Date: 2012-01-24 02:04:26 
- List: netdev
- Page: https://ratatoskr.run/netdev/2012/01/10887155

```text
Where is a good place to change my PHY config from 100BT half duplex,
auto negotiate, to full duplex 100BT, no negotiate?

Right before the probe in the controller driver, or after a reset of the
PHY?

I am using the 'General PHY' attached to the SMSC9215 controller.  Is
there a  
```