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From: Lu Guanqun <guanqun.lu@intel.com>
To: Liam Girdwood <lrg@ti.com>
Cc: ALSA devel <alsa-devel@alsa-project.org>
Subject: Re: about UCM on bluetooth headset
Date: Mon, 22 Aug 2011 21:29:08 +0800	[thread overview]
Message-ID: <20110822132908.GB9638@guanqun-laptop.ccr.corp.intel.com> (raw)
In-Reply-To: <4E52336A.6060007@ti.com>

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

  reply	other threads:[~2011-08-22 13:29 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2011-08-22  6:19 about UCM on bluetooth headset Lu Guanqun
2011-08-22 10:46 ` Liam Girdwood
2011-08-22 13:29   ` Lu Guanqun [this message]
2011-08-22 14:25   ` Mark Brown

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