Re: [LAD] Headless RME HDSP/HDSPM mixer settings

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To: <linux-audio-dev@...>
Date: Tuesday, November 19, 2013 - 10:38 pm

On Tue, Nov 19, 2013 at 10:26:08PM +0000, Fons Adriaensen wrote:

> > I wrote a quick&dirty cmdline tool to dump and restore the internal

Well, it's a bit of everything. You cannot read the current mixer state
from the card (as in: hardware), so the driver caches these values, and
that's what the tool is dumping.

hdspmixer could do the same but has an additional problem: while the
mixer state is simply a matrix of shorts, hdspmixer has the notion of
"mute" and "solo" buttons, which of course get combined into the
appropriate matrix entries. If read back, solo/mute would be lost and
would have to be shown as "volume 0" and "some volume > 0". Probably
enough for the average case, so yes, there's no need for hdspmixer to
load its default setting every time it starts, thus ruining the current
mixer state.

Cheers

--
mail: adi@thur.de http://adi.thur.de PGP/GPG: key via keyserver

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Messages in current thread:
[LAD] Headless RME HDSP/HDSPM mixer settings, Adrian Knoth, (Tue Nov 19, 10:08 pm)
Re: [LAD] Headless RME HDSP/HDSPM mixer settings, Mario Lang, (Wed Nov 20, 5:18 pm)
Re: [LAD] Headless RME HDSP/HDSPM mixer settings, Ralf Mardorf, (Tue Nov 19, 10:38 pm)
Re: [LAD] Headless RME HDSP/HDSPM mixer settings, Fons Adriaensen, (Tue Nov 19, 10:26 pm)
Re: [LAD] Headless RME HDSP/HDSPM mixer settings, Adrian Knoth, (Tue Nov 19, 10:38 pm)