[HARDY] [SRU] Fix regression where usb devices connected via a usb hub are not seen

[Andy Whitcroft]

On Wed, Aug 12, 2009 at 12:46:18AM -0500, Jerone Young wrote:
> SRU Justification:
> 
> Impact: Any USB hubs connected to a machine are unable to see devices
> without running a fresh scan via lsusb. This also effects servers as
> some have front ports connected via a usb hub. The regression was caused
> when this SRU patch was included into the kernel:
> http://kernel.ubuntu.com/git?p=ubuntu/ubuntu-hardy.git;a=commit;h=6ca9208c22280928597bcc738bf4248de0ab359d
> LP #406419
> 
> Fix: There is another upstream patch that fixes the regression cause by
> this patch to by making it scan a second time.
> http://kernel.ubuntu.com/git?p=ubuntu/ubuntu-hardy.git;a=commit;h=d1f114d12bb4db3147e1b1342ae31083c5a79c84
> 
> 
> Testcase: Attach a USB hub to machine. Then plug in usb storage device
> into the usb hub. Wait a few seconds. You will then see the see it's
> existence through kernel messages via dmesg or onscreen kernel messages.

Thanks Jerone.  I'll pick this one up and handle the process on it.

-apw