Re: devfs error on RELENG_5_2

> From: Loh John Wu <ljwu_at_sandvine.com>
> Date: Thu, 15 Jan 2004 21:31:18 -0500
> Sender: owner-freebsd-current_at_freebsd.org
> 
> Hello,
> 
> I'm running a RELENG_5_2  box and I'm trying to use the devfs to change the
> file permissions on
> /dev/ttyd1.  After perusing through the man page, I tried to change the
> permissions by doing this
> 
> # ls -ol /dev/ttyd1
> crw-------  1 root  wheel  -  28,   1 Jan 15 20:47 /dev/ttyd1
> # devfs rule add path ttyd1 mode 666
> devfs rule: ioctl DEVFSIO_RADD: Input/output error
> # ls -ol /dev/ttyd1
> crw-------  1 root  wheel  -  28,   1 Jan 15 20:47 /dev/ttyd1
> 
> but it fails and I'm not sure why.  I'll have to do 
> devfs rule applyset if the rule add succeeds since the node /dev/ttyd1 
> has already been created but I haven't got that far yet...
> I've also tried using the example in the man page
> with /dev/speaker, but it also fails with the same error.
> 
> # ls -ol /dev/speaker 
> crw-------  1 root  wheel  -  26,   0 Jan 15 21:24 /dev/speaker
> # dmesg | grep speaker
> speaker0: <PC speaker> at port 0x61 on isa0
> # devfs rule add path speaker mode 666
> devfs rule: ioctl DEVFSIO_RADD: Input/output error
> # ls -ol /dev/speaker
> crw-------  1 root  wheel  -  26,   0 Jan 15 21:24 /dev/speaker
> 
> Any thoughts on this would be greatly appreciated.
> Thanks,

First, this sort of thing does NOT belong on hackers_at_!

Second, I believe you want:
devfs rule apply path speaker mode 0666

And, if you want it to be permanent, the entry in /etc/devfs.conf would
be:
perm	speaker	0666
-- 
R. Kevin Oberman, Network Engineer
Energy Sciences Network (ESnet)
Ernest O. Lawrence Berkeley National Laboratory (Berkeley Lab)
E-mail: oberman_at_es.net			Phone: +1 510 486-8634