[alsa-devel] How to use implicit feedback with full duplex?

Eldad Zack eldad at fogrefinery.com
Thu Feb 7 21:49:52 CET 2013

Hi Felix,

On Thu, 7 Feb 2013, Felix Homann wrote:

> Hi Daniel, Hi Eldad.
> 2013/2/6 Daniel Mack <zonque at gmail.com>
>       I'll look for the FTU and re-try this with Eldad's latest additions once
>       I find some time.
> I'll probably find some time later next week. I haven't followed thoroughly what Eldad did for the C400/C600 but wanted to play around with the FTU anyway (if I
> remember correctly there was a patch dropping the first n implicit feedback packets on the C400 that might possibly be of benefit for the FTUs as well).

I only added C400 - but I hope the asymmetry-related patches will save 
time with the C600.

Do you get different latency every time you start up a stream on the 
FTU? That's the reason for the skip_packet quirk for the C400.

> @Eldad Have your latest additions already made it into Takashi's tree or where can I find them?

Yes and they are all merged upstream by now. But they are mostly 
small things and specific to the C400.


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