Re: [Alsa-devel] Re: devfs unable to handle permission: 2.4.17-pre[4,5] / ALSA-0.9.0beta[9,10]

From: Takashi Iwai (
Date: Mon Dec 10 2001 - 05:46:48 EST

At Thu, 6 Dec 2001 23:09:14 -0700,
Richard Gooch wrote:
> > Also loading the modules gives me:
> > Dec 7 00:31:58 jackson kernel: devfs: devfs_register(unknown): could not append to parent, err: -17
> Two possibilities:
> - the module is trying to register "unknown" twice. The old devfs core
> was forgiving about this (although it was always a driver bug to
> attempt to create a duplicate). The new core won't let you do that.
> Error 17 is EEXIST. Please fix the driver
I guess that's a bug (or feature :) in soundcore.

ALSA tries to register the sound devices via register_special(), which
can handle only one card correctly. All devices on 2nd or 3rd cards
are named as "unknown".

The attached patch will fix this problem.


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