I have a Sony VAIO PCG-GR170K laptop with a memory stick which operates
off of the USB controller with device ID 00:1d.2. The laptop has a total
of three USB controllers. The first two are getting IRQ's, but the third
one is not. Under Win2k, it assigns all three USB controllers IRQ 9. I
checked the bios for USB options, and the only option I could find is to
set a "Non PNP" OS. I found no other USB options. I am currently using
kernel 2.4.9 from Redhat compiled from the source RPM. I am guessing
that this must be a problem somewhere in the PCI IRQ configuration.
Any other suggestions aside from downloading 2.4.17?
$ dmesg
[snip]
usb.c: registered new driver usbdevfs
usb.c: registered new driver hub
usb-uhci.c: $Revision: 1.259 $ time 00:19:35 Dec 17 2001
usb-uhci.c: High bandwidth mode enabled
PCI: Found IRQ 9 for device 00:1d.0
PCI: Setting latency timer of device 00:1d.0 to 64
usb-uhci.c: USB UHCI at I/O 0x1800, IRQ 9
usb-uhci.c: Detected 2 ports
usb.c: new USB bus registered, assigned bus number 1
hub.c: USB hub found
hub.c: 2 ports detected
PCI: Found IRQ 9 for device 00:1d.1
PCI: Setting latency timer of device 00:1d.1 to 64
usb-uhci.c: USB UHCI at I/O 0x1820, IRQ 9
usb-uhci.c: Detected 2 ports
usb.c: new USB bus registered, assigned bus number 2
hub.c: USB hub found
hub.c: 2 ports detected
PCI: No IRQ known for interrupt pin C of device 00:1d.2.
usb-uhci.c: found UHCI device with no IRQ assigned. check BIOS settings!
usb-uhci.c: v1.251:USB Universal Host Controller Interface driver
$ lspci -vv
[snip]
00:1d.0 USB Controller: Intel Corporation: Unknown device 2482 (rev 01) (prog-if 00 [UHCI])
Subsystem: Sony Corporation: Unknown device 80e7
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-
Latency: 0
Interrupt: pin A routed to IRQ 9
Region 4: I/O ports at 1800 [size=32]
00:1d.1 USB Controller: Intel Corporation: Unknown device 2484 (rev 01) (prog-if 00 [UHCI])
Subsystem: Sony Corporation: Unknown device 80e7
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-
Latency: 0
Interrupt: pin B routed to IRQ 9
Region 4: I/O ports at 1820 [size=32]
00:1d.2 USB Controller: Intel Corporation: Unknown device 2487 (rev 01) (prog-if 00 [UHCI])
Subsystem: Sony Corporation: Unknown device 80e7
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-
Latency: 0
Interrupt: pin C routed to IRQ 0
Region 4: I/O ports at 1840 [size=32]
Here's the code from UHCI that configures the device. It looks like if
it can't see an IRQ, it can't configure the device.
/usr/src/linux/drivers/usb/uhci.c
2856 static int __devinit uhci_pci_probe(struct pci_dev *dev, const struct pci_device_id *id)
2857 {
2858 int i;
2859
2860 if (!pci_dma_supported(dev, 0xFFFFFFFF)) {
2861 err("PCI subsystem doesn't support 32 bit addressing?");
2862 return -ENODEV;
2863 }
2864 dev->dma_mask = 0xFFFFFFFF;
2865
2866 /* disable legacy emulation */
2867 pci_write_config_word(dev, USBLEGSUP, 0);
2868
2869 if (pci_enable_device(dev) < 0)
2870 return -ENODEV;
2871
2872 if (!dev->irq) {
2873 err("found UHCI device with no IRQ assigned. check BIOS settings!");
2874 return -ENODEV;
2875 }
-- Brian Lavender http://www.brie.com/brian/_______________________________________________ Linux-usb-users@lists.sourceforge.net To unsubscribe, use the last form field at: https://lists.sourceforge.net/lists/listinfo/linux-usb-users
-- Brian Lavender http://www.brie.com/brian/ - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
This archive was generated by hypermail 2b29 : Thu Jan 31 2002 - 21:00:27 EST