Re: [alsa-devel] Unregister a card from userspace?

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.