From: Felipe Ferreri Tonello <eu@felipetonello.com>
To: Ricard Wanderlof <ricard.wanderlof@axis.com>,
alsa-devel <alsa-devel@alsa-project.org>
Subject: Re: Unregister a card from userspace?
Date: Mon, 9 Nov 2015 11:24:09 +0000 [thread overview]
Message-ID: <56408259.2030604@felipetonello.com> (raw)
In-Reply-To: <alpine.DEB.2.02.1511041032180.1465@lnxricardw1.se.axis.com>
Hi Ricard,
On 04/11/15 09:36, Ricard Wanderlof wrote:
>
> A sound card driver would normally call snd_soc_register_card() to
> register its sound card with ALSA.
>
> Is there some way to unregister the card from userspace?
No. ALSA API to deal with cards are in kernel space only.
>
> My use case is that I have a card driver I'm working on as a module, and
> while insmodding it works fine, I can't rmmod it because once
> snd_soc_register_card() has been called, it has a usage count of 2 and
> thus cannot be rmmod:ed.
You have to unregister that card upon freeing your module.
--
Felipe
next prev parent reply other threads:[~2015-11-09 11:24 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-11-04 9:36 Unregister a card from userspace? Ricard Wanderlof
2015-11-04 11:24 ` Clemens Ladisch
2015-11-12 13:07 ` Ricard Wanderlof
2015-11-12 13:26 ` Lars-Peter Clausen
2015-11-12 15:38 ` Ricard Wanderlof
2015-11-09 11:24 ` Felipe Ferreri Tonello [this message]
2015-11-10 7:55 ` Ricard Wanderlof
2015-11-11 10:34 ` Felipe Ferreri Tonello
2015-11-11 12:59 ` Ricard Wanderlof
2015-11-11 13:09 ` Lars-Peter Clausen
2015-11-11 15:24 ` Ricard Wanderlof
2015-11-11 14:50 ` Felipe Ferreri Tonello
2015-11-11 15:33 ` Ricard Wanderlof
2015-11-12 10:31 ` Felipe Ferreri Tonello
2015-11-12 14:02 ` Ricard Wanderlof
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