phy_attach — attach a network device to a particular PHY device
| struct phy_device * phy_attach ( | struct net_device * dev, | 
| const char * bus_id, | |
| phy_interface_t interface ); | 
devnetwork device to attach
bus_idBus ID of PHY device to attach
interfacePHY device's interface
   Same as phy_attach_direct except that a PHY bus_id
   string is passed instead of a pointer to a struct phy_device.