[etherlab-dev] compile and use ethercat driver under linux 3.10.33

Gavin Lambert gavinl at compacsort.com
Wed Apr 9 01:01:49 CEST 2014


On 9 April 2014, quoth dries geentjens:
> Still, when I try to do "ethercat slaves" for example, the raspberry pi 
> immediatly gives me the following line: "IOCTL() version magic difference.

> EtherCAT0:28 ethercat:13".

This means that your installed kernel modules do not match your userland
versions.

> The second computer gives "Module ec_master not found. Failed".
> What is saw was the fact that I don't have the "ec_master.ko" in the 
> /lib/modules/<kernel>/ethercat.  This ethercat directory is just empty. 
> What can be the problem for this problem?

This suggests that you have not installed the kernel modules.

Both of these problems most likely stem from the same source: you are not
building the system properly.  Read the INSTALL file.





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