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    [PATCH] USB: EHCI and NF2 quirk · f8aeb3bb
    David Brownell 提交于
    This teaches the EHCI driver about a quirk seen in older NForce2 chips,
    adding a workaround to ignore selective suspend requests.  Bus-wide
    (so-called "global") suspend still works, as does USB wakeup of a
    root hub that's globally suspended.
    
    There's still a hole in this support though.  Strictly speaking, this
    should _fail_ selective suspend requests, rather than ignoring them,
    since doing it this way means that devices which should be able to issue
    remote wakeup are not going to be able to do that.  For now, we'll just
    live with that problem ... since usbcore expects to do selective suspend
    on the way towards a full bus suspend, and usbcore needs to be able to
    do full bus suspend.
    Signed-off-by: NDavid Brownell <dbrownell@users.sourceforge.net>
    Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
    f8aeb3bb
ehci-pci.c 10.5 KB