linux-kernel - Re: [RFC/PATCH v6 03/12] [alsa-devel] media: Entities, pads and links

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Message-ID: <20101125153546.GI22298@rakim.wolfsonmicro.main>
Date:	Thu, 25 Nov 2010 15:35:46 +0000
From:	Mark Brown <broonie@...nsource.wolfsonmicro.com>
To:	Laurent Pinchart <laurent.pinchart@...asonboard.com>
Cc:	Clemens Ladisch <clemens@...isch.de>, linux-media@...r.kernel.org,
	alsa-devel@...a-project.org, linux-omap@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	sakari.ailus@...well.research.nokia.com, lennart@...ttering.net
Subject: Re: [RFC/PATCH v6 03/12] [alsa-devel] media: Entities, pads and
 links

On Thu, Nov 25, 2010 at 04:29:53PM +0100, Laurent Pinchart wrote:

> It depends on how you define nodes. I can certainly imagine a graph with 100 
> controls, but maybe several controls can be part of the same node ? On the 
> video side we've decided to split entities depending on the possible data 
> paths configurations. As I'm not a fluent ascii-art speaker, please have a 
> look at pages 4 and 5 of http://www.ideasonboard.org/media/20101103-lpc-
> media.pdf

Please take a look at:

	http://www.wolfsonmicro.com/products/WM8994

for an example of a modern smartphone CODEC.  This has in the ballpark
of 75-100 nodes (I've not counted exactly) represented in the routing
graph in the driver today.  This does not include any audio routing
available in other components such as the CPU.
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