Re: EHCI TT bandwidth (was Re: [PATCH] USB_BANDWIDTH documentationchange)

From: Lee Revell
Date: Thu Dec 29 2005 - 15:01:05 EST


On Thu, 2005-12-29 at 14:41 -0500, Dan Streetman wrote:
> On Tue, 27 Dec 2005, David Brownell wrote:
>
> >(*) The issues folk have mentioned with bandwidth reservation for
> > EHCI are more "full and low speed devcies can't use all the
> > available transaction translator bandwidth" than anything else.
>
> The patches I just sent to the linux-usb-devel list (couple days ago) take
> care of those scheduling restrictions...do you have any comments on them?
> It would be great to get them in the kernel so EHCI can fully schedule any
> lowspeed or fullspeed buses that it manages. I even put the changes
> inside a kernel CONFIG option so people can test out the patches fully
> before replacing the old model.
>

How do I test them? Should this make USB audio work with
CONFIG_USB_BANDWIDTH?

Lee

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