On Wed, 21 Jan 2004, Takashi Iwai wrote:
> At Wed, 21 Jan 2004 13:55:53 +0100,
> p z oooo wrote:
> >
> > Hi,
> >
> > When I remove control through hwdep layer on emu10k1
> > driver when in use by oss emulation I got oops.
> > This is because oss emulation holds pointer to this control.
> > Is there any api to disable an then enable oss emulation or
> > only proc interface ???
>
> hmm weird, the access to ctl elements in mixer_oss.c is restricted
> with card->controls_rwsem. since snd_emu10k1_del_controls issues
> down_write() for it, it must be safe...
I think that he meant that slot->kcontrol members are not removed.
We need probably rebuild the OSS mixer -> ALSA control connections when
a control - which is used with the OSS mixer code - was removed.
Jaroslav
-----
Jaroslav Kysela <[EMAIL PROTECTED]>
Linux Kernel Sound Maintainer
ALSA Project, SuSE Labs
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