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EtherCAT master TODO

$Id$

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* Release 1.2:
  - Find bug causing slow unloading after topology change.
  - Use schedule() in ec_master_sync_io().
  - Introduce topology_change_pending.
  - Update feature lists.

* Release 1.3:
  - Remove ecrt_master_run(). "Inject" FSM commands instead.
  - Implement new addressing scheme (without "X:Y").
  - Implement tool to set aliases.
  - Remove ugly ec_slave_is_coupler().
  - Add statistics object.
  - SDO dictionary and -access in operation mode.
  - SDO write access in Sysfs.
  - Speed up IDLE-FSM through fast mode with schedule().

* Implement e100 driver.
* Implement distributed clocks.
* Read dynamic PDO mapping from SDO dictionary (see can-cia.org: cia301ds4).
* Implement redundancy with 2 network adapters.
* Implement interface for alternative PDO mapping.

* Simplify FSMs with <state>_enter() functions.
* Make ec_sync_config() and ec_fmmu_config() to methods of ec_slave_t.
* Rename "sysconfig" file to "sysconfig/ethercat".
* Dynamic creation of EoE handlers.
* Output intermediate results during lsec.
* State change FSM: Follow spontaneous state changes.

* Implement all EtherCAT datagram types.
* File access over EtherCAT (FoE).
* Allow VLAN tagging.
* Determine number of frames the NIC can handle.

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