[alsa-devel] about UCM on bluetooth headset

[Lu Guanqun]

On Mon, Aug 22, 2011 at 06:46:02PM +0800, Liam Girdwood wrote:
> On 22/08/11 07:19, Lu Guanqun wrote:
> > Hi Liam,
> > 
> > In alsa-libs:include/use-case.h, there are below lines:
> > 
> > 	* a conversation etc. The device describes the physical audio capture and playback
> > 	* hardware i.e. headphones, phone handset, bluetooth headset, etc.
> > 
> > I'm not quite clear about how to set a use case for bluetooth headset.
> > According to my understanding, bluetooth doesn't fall into the category
> > of ALSA, therefore there's no such direct devices for it.
> > 
> > Could you shed some lights on this? What's the best practises to use UCM
> > with bluetooth?
> > 
> 
> This is intended for systems where the BT audio is integrated in some
> way with the other audio ICs. It's intended to configure the other
> audio devices to allow use cases involving BT in such systems.

Hi Liam,

Thanks, I got your point. For example, where BT HSP is implemented over
ALSA PCM, it's most probably exposed as an ALSA device, then we can
configure it.

-- 
guanqun