Ubuntu
linux-source-2.6.22 package

  1. Bug #88746 (ehci-hcd)
  2. Comment #172

Comment 172 for bug 88746

Revision history for this message
Markus Kienast (elias1884) wrote : Re: [Bug 88746] Re: ehci_hcd module causes I/O errors in USB 2.0 devices

Robert: On my Laptop, some ports are working and some do produce the
problem. I suspect this is due to some ports being native USB ports and
others being wired as internal USB hub ports.

You might want to check, if this is the case for your setup as well.

Some dev could go ahead and tell us, how we can determine, which ports
are direct native USB ports and which ones are internal hubs. There must
be a way to find that out, to verify my theory.

On Mon, 2007-12-10 at 02:36 +0000, Robert North wrote:
> Ok, here's the kernel log from my current failing USB setup.
> Not that this setup was previously succeeding.
>
> ** Attachment added: "Ubuntu 7.10 kernlog--usb errors"
> http://launchpadlibrarian.net/10819214/Ubuntu%207.10%20kernlog--usb%20errors
>