Subject: Re: [linux-audio-user] Is everyone sick of interrupts yet?
From: Mark Knecht (mknecht_AT_controlnet.com)
Date: Wed Sep 29 2004 - 18:42:56 EEST
Lee Revell wrote:
> On Wed, 2004-09-29 at 09:55, Mark Knecht wrote:
>>For me this is not a mere curiosity. Yesterday I brought up FC2 and
>>then, with much help from Steve Harris and Fernando, got a new Planet
>>kernel installed. No sooner than I had started Jack I then started using
>>my USB mouse and getting huge xruns. Since USB is shared with the sound
>>chip I think it's an example of what we ae talking about here.
>
>
> Not quite. If you have a USB sound card it's a different ball game,
> because you don't just have two separate devices sharing the interrupt,
> you actually have them competing for USB bus bandwidth. Although it
> should work if they are on different USB controllers. Unfortunately I
> am not an expert on USB so I can't help much more.
>
> Lee
>
>
It is a PCI sound chip sharing an interrupt with a PCI USB OHCI (EHCI?)
contoller. There is no sharing of USB bandwidth. Sorry - that was
badly worded before...
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