[etherlab-dev] Problem using userspace library and EoE

[Gregor Beck]

Hi all,

reading and writing SDO's from userspace while an EoE interface is up (but 
otherwise unused) occasionally failed with:

Failed to execute SDO upload: Input/output error

# dmesg
EtherCAT: Requesting master 0...
EtherCAT: Successfully requested master 0.
EtherCAT ERROR 0-0: Mailbox error response received - Unknown error reply code 
0x0000.
EtherCAT WARNING 0-0: Invalid mailbox response for eoe0s0.
EtherCAT ERROR 0-1: Mailbox error response received - Unknown error reply code 
0x0000.
EtherCAT WARNING 0-1: Invalid mailbox response for eoe0s1.
EtherCAT WARNING 0-2: Other mailbox protocol response for eoe0s2.
EtherCAT ERROR 0-2: Reception of CoE upload response failed: No response.
EtherCAT ERROR 0-2: Failed to process SDO request.
EtherCAT 0: Releasing master...
EtherCAT 0: Released.


Skimming the documentation suggests using ecrt_master_callbacks() but it isn't 
provided in userspace.

How is this supposed to work?

Thank you

-- 
Gregor Beck

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