Re: [linux-usb-devel] [Bugme-new] [Bug 8190] New: ehci_hcd can't reinitialize scanner after suspend>resume
Oliver Neukum <[email protected]>
| Newsgroups | gmane.linux.acpi.devel,gmane.linux.usb.devel |
|---|---|
| Organization | Novell |
| Message-ID | <[email protected]> |
Am Dienstag, 13. März 2007 10:00 schrieb Andrew Morton: > > On Tue, 13 Mar 2007 00:51:32 -0700 [email protected] 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: [email protected] > > Submitter: [email protected] > > > > > > 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 - To unsubscribe from this list: send the line "unsubscribe linux-acpi" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html