From: Pavel Machek <pavel@ucw.cz>
To: Mark Brown <broonie@kernel.org>
Cc: ksummit-discuss@lists.linuxfoundation.org
Subject: Re: [Ksummit-discuss] [TECH TOPIC] mobile phones
Date: Mon, 26 Jun 2017 14:22:24 +0200 [thread overview]
Message-ID: <20170626122224.GA11441@amd> (raw)
In-Reply-To: <20170626112052.oze7qxmxiyu67wzh@sirena.org.uk>
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Hi!
> > > > 2) How to handle GSM audio?
>
> > > What is the issue here? Isn't GSM audio just another audio source/sink
> > > which user-space can send where-ever it likes?
>
> > It is somehow packetized, and has timestamps and gaps in it, I was
> > told. That's why we use /dev/cmt_speech, not ALSA. Probably ALSA
> > should be improved.
>
> No, such systems can and do work absolutely fine with the existing
> frameworks. You just have non-upstream drivers that don't make any
> effort to work within existing frameworks. Most of the vendors came
> round to doing the right thing on this some years ago.
Take a look at ./drivers/hsi/clients/cmt_speech.c in your favourite
kernel. It was merged in 2010 AFAICT.
Pavel
--
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
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next prev parent reply other threads:[~2017-06-26 12:22 UTC|newest]
Thread overview: 43+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-06-25 10:48 [Ksummit-discuss] [TECH TOPIC] mobile phones Pavel Machek
2017-06-25 23:55 ` NeilBrown
2017-06-26 6:43 ` Geert Uytterhoeven
2017-06-26 6:49 ` Tony Lindgren
2017-06-26 11:12 ` Pavel Machek
2017-06-26 11:49 ` Tony Lindgren
2017-06-26 13:14 ` Pavel Machek
2017-06-26 13:49 ` Tony Lindgren
2017-06-26 20:49 ` Pavel Machek
2017-06-27 7:18 ` Tony Lindgren
2017-06-27 12:14 ` Sebastian Reichel
2017-06-27 21:57 ` Pavel Machek
2017-06-28 16:01 ` Sebastian Reichel
2017-06-28 20:27 ` Pavel Machek
2017-07-02 12:03 ` Sebastian Reichel
2017-06-27 21:57 ` Pavel Machek
2017-06-26 8:34 ` Pavel Machek
2017-06-26 11:20 ` Mark Brown
2017-06-26 12:22 ` Pavel Machek [this message]
2017-06-27 11:40 ` Mark Brown
2017-06-28 18:37 ` Pavel Machek
2017-07-02 12:11 ` Sebastian Reichel
2017-06-26 22:23 ` Alexandre Belloni
2017-06-27 7:06 ` Pavel Machek
2017-06-27 12:39 ` Sebastian Reichel
2017-06-27 21:57 ` Pavel Machek
2017-06-28 16:45 ` Sebastian Reichel
2017-06-28 21:10 ` Pavel Machek
2017-07-02 11:28 ` Sebastian Reichel
2017-07-02 18:14 ` Pavel Machek
2017-06-26 10:54 ` Mark Brown
2017-06-26 11:14 ` Pavel Machek
2017-06-26 11:49 ` Mark Brown
2017-06-26 12:38 ` Pavel Machek
2017-06-26 16:34 ` Mark Brown
2017-06-27 11:41 ` Sebastian Reichel
2017-06-28 14:38 ` Linus Walleij
2017-06-28 15:58 ` Arnd Bergmann
2017-06-28 16:04 ` Laurent Pinchart
2017-06-28 16:25 ` Pavel Machek
2017-06-28 18:26 ` Mark Brown
2017-06-28 17:01 ` Pavel Machek
2017-06-28 19:03 ` Tony Lindgren
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