[alsa-devel] multiple devices or one device w/ multiple subdevices?

Eliot Blennerhassett eblennerhassett at audioscience.com
Tue Aug 25 05:06:00 CEST 2009

pl bossart wrote:
> Hi,
> I have a piece of custom hardware that provides 7 independent PCM
> outputs. 
> My conclusion is that multiple devices would seem like a much better
> option. But I wanted to check with the community that I am on the
> right track. Thanks for your feedback!

It used to be that there was a limit of 4 devices per card.
But no (or large) limit on subdevices.

If this still applies you will need to use subdevices, and for 
simplicity you would create just one device with 7 subdevs.


More information about the Alsa-devel mailing list