From mboxrd@z Thu Jan 1 00:00:00 1970 From: Sergio Monteiro Basto Subject: Re: "Found HC with no IRQ" empty /proc/bus/usb Date: Sun, 03 Apr 2005 16:27:44 +0100 Message-ID: <1112542065.790.0.camel@bastov> References: <424D8C48.1090804@atreus-systems.com> Reply-To: sergio-qOf5bGQp09kptuEoxK/DLR2eb7JE58TQ@public.gmane.org Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-15 Content-Transfer-Encoding: quoted-printable Return-path: In-Reply-To: <424D8C48.1090804-sAvY64jVBerkQYj/0HfcvtBPR1lH4CV8@public.gmane.org> Sender: acpi-devel-admin-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org Errors-To: acpi-devel-admin-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , List-Archive: Cc: acpi-devel List-Id: linux-acpi@vger.kernel.org is the age of the Bios is less then 2001 ? probably is , if so, you should append "acpi=3Dforce" to enable ACPI. On some Bios configurations, you also have to enable ACPI and disable APM ( on Bios configuration ) On Fri, 2005-04-01 at 13:00 -0500, Allan Mcintosh wrote: > Hey, >=20 > 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 disabl= e > USB. Any suggestions would be greatly appreciated. >=20 > I have tried several kernels, most recently 2.6.10 and 2.6.11.5. > I have also tried booting with variations of >=20 > append=3D"noapic acpi=3Doff pci=3Dbiosirq" >=20 >=20 > Upon loading uhci_hcd module I see the following >=20 > $ dmesg > > 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! >=20 >=20 >=20 > $ lspci -vv > > 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=3Dmedium >TAbo= rt- > SERR- Interrupt: pin D routed to IRQ 0 > Region 4: I/O ports at ef80 [size=3D32] >=20 >=20 > $ lsmod > Module Size Used by > uhci_hcd 34640 0 > ehci_hcd 34180 0 > usbhid 33184 0 > usbcore 123096 3 uhci_hcd,ehci_hcd,usbhid > >=20 >=20 >=20 >=20 >=20 >=20 >=20 >=20 >=20 --=20 S=E9rgio M.B. ------------------------------------------------------- SF email is sponsored by - The IT Product Guide Read honest & candid reviews on hundreds of IT Products from real users. Discover which products truly live up to the hype. Start reading now. http://ads.osdn.com/?ad_id=3D6595&alloc_id=3D14396&op=3Dclick