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Re: [Qemu-devel] [HACK] hda: expose microphone instead of line-in

From: Gerd Hoffmann
Subject: Re: [Qemu-devel] [HACK] hda: expose microphone instead of line-in
Date: Thu, 03 May 2012 14:39:18 +0200
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:10.0.4) Gecko/20120422 Thunderbird/10.0.4


>>> I found another workaround: audio hw passthrough. Works nicely. And this
>>> indicates that there should be still some room for improvement in the
>>> device model so that Windows chooses a proper ring buffer size, no?
>> Why? For hw passthrough, mmio doesn't go through qemu anymore, right? :)
> The point is that both pt as well as emulation suffer from the same
> issue: lacking real-time support of QEMU. So I guess Windows uses a
> different buffer size for the real hardware than for our HDA model.

What IRQ rate you are seeing?


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