From: Clemens Ladisch <clemens@ladisch.de>
To: Ondrej Zary <linux@rainbow-software.org>
Cc: alsa-devel@alsa-project.org
Subject: Re: calling snd_ctl_notify from mixer ctl_put
Date: Fri, 12 Oct 2012 08:03:13 +0200 [thread overview]
Message-ID: <5077B2A1.5070608@ladisch.de> (raw)
In-Reply-To: <201210112129.03097.linux@rainbow-software.org>
Ondrej Zary wrote:
> I want to enable/disable some mixer controls based on state of another control
> (switching between limiter and AGC mode). So I (re)set the
> SNDRV_CTL_ELEM_ACCESS_INACTIVE flag in kctl->vd[0].access
> and then call snd_ctl_notify(card, SNDRV_CTL_EVENT_MASK_INFO, &kctl->id);
> Everyting from ctl_put() mixer callback.
>
> When changing the control value in alsamixer, it crashes with:
> alsamixer: simple.c:948: snd_mixer_selem_get_enum_item: Assertion
> `(elem)->type == SND_MIXER_ELEM_SIMPLE' failed.
Looks like a bug in alsamixer.
Regards,
Clemens
next prev parent reply other threads:[~2012-10-12 6:03 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-10-11 19:29 calling snd_ctl_notify from mixer ctl_put Ondrej Zary
2012-10-12 6:03 ` Clemens Ladisch [this message]
2012-10-13 21:23 ` Ondrej Zary
2012-10-21 1:06 ` Raymond Yau
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