From: Clemens Ladisch <clemens@ladisch.de>
To: Jean-Yves Avenard <jyavenard@gmail.com>
Cc: alsa-devel@alsa-project.org
Subject: Re: Detecting if a pcm device is a digital or analog one
Date: Fri, 25 Jun 2010 10:21:33 +0200 [thread overview]
Message-ID: <4C24670D.4010501@ladisch.de> (raw)
In-Reply-To: <AANLkTinFnfXXikPmn1vGmt2WHQQnhGAzav9nYOvB4Vda@mail.gmail.com>
Jean-Yves Avenard wrote:
> I was wondering if there was any way to accurately distinguish between
> audio device, if it has an analog or a digital output.
Not really. There are devices where the same stream is routed to both
analog and digital outputs, and sometimes the driver cannot know if
there is a DAC further down the line. In any case, this would be very
hardware specific.
What do you need this for?
Regards,
Clemens
next prev parent reply other threads:[~2010-06-25 8:21 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-06-25 6:57 Detecting if a pcm device is a digital or analog one Jean-Yves Avenard
2010-06-25 8:21 ` Clemens Ladisch [this message]
2010-06-25 16:55 ` James Courtier-Dutton
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