ttyUSB0 permission issue. UDev ?

Sandy Pond sandy_pond at myrealbox.com
Sat Nov 6 23:28:53 UTC 2004


On Sat, 2004-11-06 at 15:02 -0700, Kim Lux wrote:
> I've got a problem with the permissions on the serial port assigned to
> my USB serial port device.  It is always root access only. 
> 
> I've got regular users that need to use this device without root
> intervention.  Right now the hot plug event mounts the device properly
> and everything, except that the permission on it is root only.
> 
> As root I can change the permission to users and then it is perfectly
> usable, but the next time the device is hot plugged the permissions are
> back to root. 
> 
> I am not very familiar with UDev.  Is there a way to configure it so
> that certain devices get different permissions ?
> 
> Thanks. 

Try looking at /etc/udev/permissions.d/50-udev.permissions and look at
sample udev.permissions in the udev man page:

man udev








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