[etherlab-users] user-space application needs elevated privileges for /dev/EtherCAT0?

[Dusty Clark]

Pardon for the noob question, but I have Etherlab 1.5.2 set up on a Fedora
19 system, and have a strange issue with reserving a master instance.

To start with, I *should* have read/write permission on the
device:[dclark at bukhansan Debug_ecat]$ ls -l /dev/EtherCAT0
crw-rw-r--. 1 root users 249, 0 Jan  1 13:33 /dev/EtherCAT0

But when I wrote the simplest possible application to just request and then
release the master to check I had all the build and link options set
correctly, I got the following error:

[dclark at bukhansan Debug_ecat]$ ./TestServo
Failed to open /dev/EtherCAT0: Permission denied
FATAL: couldn't request a master instance.

Running it as root:
[root at bukhansan Debug_ecat]# ./TestServo
Master instance created ok
Releasing master...done!

Any ideas why this would be? Thanks in advance!

Dusty Clark
MMT Observatory
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