From: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
To: alsa-devel@alsa-project.org
Subject: Re: Declaring HDMI channel allocation to kernel
Date: Mon, 23 Jul 2012 14:39:38 -0500 [thread overview]
Message-ID: <500DA87A.8080901@linux.intel.com> (raw)
In-Reply-To: <500D5D3D.2060108@gmail.com>
On 7/23/2012 9:18 AM, Gabriel M. Beddingfield wrote:
>
> Is there an established way for me (from userspace) to pass the HDMI
> Channel Allocation (1 byte) to the driver? If not, can you recommend
> an approach?
>
> In most of the drivers that I've inspected, the drivers seem to assume
> that there's a 1:1 mapping of Number-of-Channels to
> Channel-Allocation. However, the HDMI sink declares which speakers it
> has attached in the EDID. If I can match this in userspace... I need
> a way to communicate it to the driver.
I believe this is one of the topics that will be presented by Takashi at
LPC, we need the ability to specify a arbitrary sink-specific channel
mapping.
next prev parent reply other threads:[~2012-07-23 19:39 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-07-23 14:18 Declaring HDMI channel allocation to kernel Gabriel M. Beddingfield
2012-07-23 19:39 ` Pierre-Louis Bossart [this message]
2012-07-24 12:30 ` Gabriel M. Beddingfield
2012-07-24 17:43 ` Ricardo Neri
2012-07-24 18:55 ` Gabriel Beddingfield
2012-07-25 3:10 ` Ricardo Neri
2012-07-24 12:33 ` Takashi Iwai
2012-07-24 12:36 ` Mark Brown
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