Summary: Accessing devices as non-root user

Dear managers,

Thanks to all that responded!

we have an application (running on Solaris 10) that accesses sound and
serial devices. The application works when run as root, but is not
able to access (/dev/audio, /dev/term/0,...) when run as a normal
user.

audioCtlDevice = open ("/dev/audioctl", O_RDWR);
if (audioCtlDevice < 0) { NSLog(@"Error: open() returned %d;
errno %d", audioCtlDevice, errno); return 0; }

2007-05-22 11:57:15.084 AudioPlayTest[21626] Error: open() returned
-1; errno 2

I suppose this is a general issue. What do we have to do to give
non-root users access to devices?

It has been recommended to check http://blogs.sun.com/jg and also have
a look into update_drv. I modified the entry in /etc/minor_perm from
"audio:* 0600 root sys" to

audio:* 0666 root sys

and ran "devfsadm -c audio". I also tried "update_drv" which just gave
me a list of options. "update_drv -v audio" gave me

-bash-3.00# update_drv -v audio
Failed to update audio.conf for driver.

and I can still not access /dev/audio when the app is run as a normal
user (it works when run as root).

/Build/AudioPlayTest/obj/AudioPlayTest

2007-05-31 10:29:08.177 AudioPlayTest[26025] Error: open() returned
-1; errno 13

Since I wasn't able to populate my changes to /etc/minor_perm via any
update_drv or the like command I finally rebooted the machine. After
that I could access /dev/audio as a non-root user. Not nice but it
works!

Thanks,

Andreas
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