Re: High speed devices with kernel 2.6.21.5.

On 7/11/07, Alan Stern <[email protected]> wrote:
> On Tue, 10 Jul 2007, Branden Sletteland wrote:
>
> > Just tried 2.6.21-rc1 and I get the same problem. Are there snap shots
> > before this?
> >
> > Attached is a dmesg dump from a 2.6.20.11 kernel on the same hardware config.
>
> It's hard to tell exactly where the problem is.
>
> Several changes were made to ehci-hcd during the time frame between
> 2.6.20 and 2.6.21-rc1.  In order, they are:
>
> http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commitdiff_plain;h=083522d76662cda71328df1f3d75e5a9057c7c9f
>
> http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commitdiff_plain;h=e6316565e568b3b5733be10cfca3c27259bef499
>
> http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commitdiff_plain;h=625b5c9a0069ef1b61feb3ce599b39f1b04b5666
>
> http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commitdiff_plain;h=57e06c11372eccf5acebdd4664eb025fee76c561
>
> http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commitdiff_plain;h=629e4427aa817d5c9f11885420abf54b8f5967dc
>
> You could try applying them one by one starting from 2.6.20 and see at
> which stage the problem begins.
>
> Alan Stern
>
>

None of these patches exhibited the problem.   The third one couldn't
read the USB device descriptor, but the 4th patch fixed that.

I noticed these patches only touched files in drivers/usb/host, did
anything change in drivers/usb/core or other places in the same time
frame.

Or are there other patches prior to 2.6.21-rc1 that I can try?

Thanks,
Branden

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