HAL, sound cards and laptops

[Danny Kukawka]

On Tuesday 08 August 2006 14:17, Matthew Garrett wrote:
> On Tue, Aug 08, 2006 at 02:04:32PM +0200, Danny Kukawka wrote:
> > No, IMO not. This is as I already wrote only possible for AC97 and not
> > HD-audio and other devices. And if this only work for AC97, this info is
> > IMO useless. But you can also check this in your code if you really need
> > this info. The only correct way is via ALSA.
>
> Mm? Surely the entire point of hal is to provide this information
> without needing to know the specific APIs? It would be massively helpful
> if hal would tell me whether a device node corresponds to a real sound
> card or a modem. AFAIK, there's no trivial way to get that information
> via OSS, which is still a supported kernel API.

Okay, Thanks to Takashi Iwai. He wrote today, after our discussion, a patch to 
export the the type/class information to sysfs (IMO this go upstream into the 
kernel). I work on integration of this information in HAL and send a patch 
(together with the kernel patch) if all works.

Danny