于 2012/7/24 22:59, Alan Stern 写道:
Yes, good idea.

When you do this, you should also add another little paragraph to
Documentation/usb/persist.txt.  At the end of the "What is the
solution?" section, explain why the persist attribute cannot be set if
the avoid_reset_quirk attribute is on.

Hmmm, what about hubs?  They don't have a persist attribute because
persist is_always_  supposed to be enabled for a hub.  Maybe this means
they shouldn't have an avoid_reset_quirk attribute either.
Another proposal is to add USB_CLASS_HUB check in the avoid_reset_quirk
attribute callback. If it was hub, return directly.
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