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From: Clemens Ladisch <clemens@ladisch.de>
To: Rafal Powierski <powierski@mediascore.de>
Cc: alsa-devel@alsa-project.org
Subject: Re: snd_hwdep_open() as non-root user
Date: Thu, 04 Oct 2012 14:50:10 +0200	[thread overview]
Message-ID: <506D8602.3050007@ladisch.de> (raw)
In-Reply-To: <44F73A434CA44E548BE58635A97F56C9@mediascore.mediascore.de>

Rafal Powierski wrote:
> 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.

sound/pci/hda/hda_hwdep.c says:

static int hda_hwdep_open(struct snd_hwdep *hw, struct file *file)
{
#ifndef CONFIG_SND_DEBUG_VERBOSE
	if (!capable(CAP_SYS_RAWIO))
		return -EACCES;
#endif
	return 0;
}


Regards,
Clemens
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  reply	other threads:[~2012-10-04 12:50 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2012-10-04 11:01 snd_hwdep_open() as non-root user Rafal Powierski
2012-10-04 12:50 ` Clemens Ladisch [this message]
2012-10-04 16:06   ` Rafal Powierski

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