Re: [34-stable regression] USB delay init quirk causes device eventsloss

From: Alan Stern
Date: Mon Sep 13 2010 - 12:24:50 EST


On Mon, 13 Sep 2010, Phil Dibowitz wrote:

> Thanks for figuring this out Alan. I think this is reasonable. However, I
> think this also went into .32-stable and should probably be reverted there
> as well.

I think kernels earlier than .34 will be okay. The changeover to the
runtime-PM framework occurred during the .33-.35 timeframe, and so .34
was in an intermediate state.

Jiri, as a workaround for people using the current 3.6.34.stable, you
can ask them to do:

echo on >/sys/bus/usb/devices/.../power/level

with the "..." filled in appropriately.

> I'll advise my users to make sure they have at least .35.

That probably isn't necessary.

Alan Stern

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