[alsa-devel] [PATCH] ALS4000, slight mixer improvements

Andreas Mohr andi at lisas.de
Mon Feb 23 10:36:51 CET 2009

On Mon, Feb 23, 2009 at 10:30:16AM +0100, Takashi Iwai wrote:
> At Mon, 23 Feb 2009 10:26:36 +0100,
> Andreas Mohr wrote:
> > AFAICS, things should ideally work this way:
> > plug USB adapter, ALSA uses its default USB-Audio.conf settings (just like
> > with several other PCI and such cards), then for devices with non-existing
> > H/W volume (and only those!!), automatically and generically provide ALSA
> > softvol.
> The "automatically" is easy to write but hard to achieve the guarantee
> to work with all possible devices :)
> Especially the mixer name of usb-audio is determined dynamically by
> guess from usb descriptors, covering all possible names is no easy
> task.

Oh well, I'm not entirely up to what you're indicating here,
but at least I do have some diversity, via two very different adapters
(one 5.1 / H/W softvol, one not), and thus I should be able to draw
some conclusions.


Andreas Mohr

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