]> err.no Git - linux-2.6/commit
[PATCH] USB: EHCI and NF2 quirk
authorDavid Brownell <david-b@pacbell.net>
Fri, 20 Jan 2006 21:55:14 +0000 (13:55 -0800)
committerGreg Kroah-Hartman <gregkh@suse.de>
Mon, 20 Mar 2006 22:49:55 +0000 (14:49 -0800)
commitf8aeb3bb8657b207895aa10f75e63f2c48d08985
treea752ed44de17a3f0315cffeddfb944cb33c778aa
parent4186ecf8ad16dd05759a09594de6a87e48759ba6
[PATCH] USB: EHCI and NF2 quirk

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: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
drivers/usb/host/ehci-hub.c
drivers/usb/host/ehci-pci.c
drivers/usb/host/ehci.h