[alsa-devel] snd_hwdep_open() as non-root user

Rafal Powierski powierski at mediascore.de
Thu Oct 4 13:01:18 CEST 2012

I would like to access pin verb hda interface using snd_hwdep_open() function.
It works fine if I run as root.
I hope there is a way to configure my kubuntu so I can do it as non-root user (e.g. debugging) 
so far, I have been trying changing access flags for devices in /dev/snd/ directory to crwxrwxrwx no plus character.
It did not change my privileges for snd_hwdep_open() -  still returns –13.
I assume that the device-file responsible is /dev/snd/hwC1D0, the same as parameter given to “hda-verb” program.
I am developing a new hardware, using HDA codec.
Please help

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