Remove old ec_list before creating link.
-------------------------------------------------------------------------------
EtherCAT master TODO
$Id$
-------------------------------------------------------------------------------
Important things to do:
* New SDO-Configuration interface
* Remove slave type information from master / New RT Interface
* Always use state machines / remove simple IO code
* SysFS interface
- Add secondary slave address
- Add SDO dictionary
* Implement all EtherCAT commands
* Determine number of frames the NIC can handle
* Implement eepro100 driver
-------------------------------------------------------------------------------
Not-so-important things to do:
* User space tool for configuration
* Calculate bus topology
* File access over EtherCAT (FoE)
* Allow VLAN tagging
-------------------------------------------------------------------------------