Re: [linux-usb-devel] [Bugme-new] [Bug 8190] New: ehci_hcd can't reinitialize scanner after suspend>resume

[Oliver Neukum <oneukum@suse.de>]

Am Dienstag, 13. März 2007 10:00 schrieb Andrew Morton:
> > On Tue, 13 Mar 2007 00:51:32 -0700 bugme-daemon@bugzilla.kernel.org wrote:
> > http://bugzilla.kernel.org/show_bug.cgi?id=8190
> > 
> >            Summary: ehci_hcd can't reinitialize scanner after suspend>resume
> >     Kernel Version: 2.6.20, 2.6.21-rc3-gbe521466
> >             Status: NEW
> >           Severity: normal
> >              Owner: acpi_power-sleep-wake@kernel-bugs.osdl.org
> >          Submitter: bug-track@fisher-privat.net
> > 
> > 
> > Most recent kernel where this bug did *NOT* occur:
> > Distribution:gentoo 2006.1 i686-pc-linux-gnu
> > Hardware Environment:scanner epson perfection 1670, 82801G (ICH7 Family) USB2
> > EHCI Controller
> > 
> > Problem Description: with suspend to ram kernel will set scanner to the standby
> > mode, but after resume kernel can't resume scanner _if_ ehci (module) is used.
> > With this issue sane can't use the scanner you need replug it to make it use.
> > 
> > This issue not upper if kernel compiled without ehci support.
> > 
> > Steps to reproduce:
> > 1. compile kernel with ehci (module or build-in) and restart
> > 2. plugin scanner (sane is working)
> > 3. echo mem > /sys/power/state && scanner will be set to standby mode too.
> > 4. resume && scanner will stay in standby mode
> > 5. replug the scanner to make it use.
> > 
> 
> Is this an ACPI bug, or a USB bug?

If any other USB device works, it is USB. Otherwise it may be both.

	Regards
		Oliver
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