From: Allan Mcintosh <amcintosh-sAvY64jVBerkQYj/0HfcvtBPR1lH4CV8@public.gmane.org>
To: acpi-devel-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org
Subject: "Found HC with no IRQ" empty /proc/bus/usb
Date: Fri, 01 Apr 2005 13:00:40 -0500 [thread overview]
Message-ID: <424D8C48.1090804@atreus-systems.com> (raw)
Hey,
On my debian Dual 550MHz Pentium III machine, I am unable to get usb
working. I didn't notice anything obvious in the bios that would disable
USB. Any suggestions would be greatly appreciated.
I have tried several kernels, most recently 2.6.10 and 2.6.11.5.
I have also tried booting with variations of
append="noapic acpi=off pci=biosirq"
Upon loading uhci_hcd module I see the following
$ dmesg
<snip>
usbcore: registered new driver usbfs
usbcore: registered new driver hub
usbcore: registered new driver hiddev
usbcore: registered new driver usbhid
drivers/usb/input/hid-core.c: v2.0:USB HID core driver
USB Universal Host Controller Interface driver v2.2
PCI: Enabling device 0000:00:07.2 (0000 -> 0001)
PCI: No IRQ known for interrupt pin C of device 0000:00:07.2. Probably
buggy MP table.
uhci_hcd 0000:00:07.2: Found HC with no IRQ. Check BIOS/PCI
0000:00:07.2 setup!
$ lspci -vv
<snip>
0000:00:07.2 USB Controller: Intel Corp. 82371AB/EB/MB PIIX4 USB (rev
01) (prog-if 00 [UHCI])
Control: I/O+ Mem- BusMaster- SpecCycle- MemWINV- VGASnoop-
ParErr- Stepping- SERR- FastB2B-
Status: Cap- 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort-
<TAbort- <MAbort- >SERR- <PERR-
Interrupt: pin D routed to IRQ 0
Region 4: I/O ports at ef80 [size=32]
$ lsmod
Module Size Used by
uhci_hcd 34640 0
ehci_hcd 34180 0
usbhid 33184 0
usbcore 123096 3 uhci_hcd,ehci_hcd,usbhid
<snip>
--
Allan McIntosh
Software Designer
Atreus Systems, Inc.
613-233-1741 ext: 217 (Office)
613-233-8204 (Fax)
amcintosh-sAvY64jVBerkQYj/0HfcvtBPR1lH4CV8@public.gmane.org <mailto:amcintosh-sAvY64jVBerkQYj/0HfcvtBPR1lH4CV8@public.gmane.org>
www.atreus-systems.com <http://www.atreus-systems.com/>
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next reply other threads:[~2005-04-01 18:00 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-04-01 18:00 Allan Mcintosh [this message]
[not found] ` <424D8C48.1090804-sAvY64jVBerkQYj/0HfcvtBPR1lH4CV8@public.gmane.org>
2005-04-03 15:27 ` "Found HC with no IRQ" empty /proc/bus/usb Sergio Monteiro Basto
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