Re: [linux-usb-devel] Problems with USB setup with Linux 2.6.16

[Mark Lord]

Joshua Kwan wrote:
> On 04/02/2006 07:09 PM, Alan Stern wrote:
> > If you were to continue looking farther down in the log, you would find
> > that ehci-hcd sees all those devices.  Those that can run at high speed
> > continue using the EHCI controller.  For those that can't, the switch is 
> > reset and they get reconnected to their UHCI controller.
>
> That makes sense - that is indeed what happens when it DOES work (i.e.
> with 2.6.15), but the fact is that they don't come back in 2.6.16. I
> will try building ehci-hcd in and see what happens.

Around 2.6.13, I noticed that EHCI stopped working after a suspend/resume
(to/from RAM) cycle.  So I updated my suspend script to unload/reload EHCI
each time, which fixed the problem for me.  My script still does that.

Dunno if it's fixed in mainline or not.
Does unloading/reloading EHCI help you?

  rmmod ehci_hcd ; modprobe ehci_hcd

Cheers
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