devfs and changing device permissions

Micah micahjon at ywave.com
Mon Jul 31 01:04:27 UTC 2006


Robert Huff wrote:
> 	If I want to permanently change the permissions for a device, I
> add en entry to /etc/devfs.conf.  Right?

Depends. If the device is present when the system boots, yes. If it 
shows up later (like a USB drive) then you need to set up some 
/etc/devfs.rules instead.

> 	But that doesn't get picked up until the next time devd is
> started.  If I want to change the permissions right now, can I just
> go into /dev and use chmod or do I need to fool around with
> devfs(8)?
> 
> 
> 			Robert Huff

devfs.rules are applied when you execute /etc/rc.d/devfs restart, and 
that may apply to devfs.conf too (never tried it honestly). That said, 
I've never had problems using chmod for temporary changes on device nodes.

HTH,
Micah


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