Hi, I'm just bought an USB 2.0 PCI adapter for my (rather old) Copaq Proliant 1600 (P08) server to get my USB ADSL modem working on it. So far, I didn't succeed at doing this, therefore my post. Here an extract of the bootprocess using dmesg: <cut> ehci_hcd 01:0a.2: VIA Technologies, Inc. USB 2.0 ehci_hcd 01:0a.2: irq 5, pci mem cc874d00 usb.c: new USB bus registered, assigned bus number 1 ehci_hcd 01:0a.2: USB 2.0 enabled, EHCI 0.95, driver 2003-Dec-29/2.4 hub.c: USB hub found hub.c: 4 ports detected usb-uhci.c: $Revision: 1.275 $ time 06:05:59 Jul 21 2004 usb-uhci.c: High bandwidth mode enabled PCI: Enabling device 00:14.2 (0000 -> 0001) PCI: No IRQ known for interrupt pin D of device 00:14.2. Please try using pci=biosirq. usb-uhci.c: found UHCI device with no IRQ assigned. check BIOS settings! usb-uhci.c: USB UHCI at I/O 0x2800, IRQ 5 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 usb-uhci.c: USB UHCI at I/O 0x2820, IRQ 15 usb-uhci.c: Detected 2 ports usb.c: new USB bus registered, assigned bus number 3 hub.c: USB hub found hub.c: 2 ports detected usb-uhci.c: v1.275:USB Universal Host Controller Interface driver <cut> As you can see, there is something wrong with the assignment of one of the USB devices. I tried to fix this using the SmartStart CD, but the BIOS of the server is the weirdest one I ever encountered, so no real luck there. (I'm not used to working with the .CFG files there). Here an extract of the lspci command: 00:00.0 Host bridge: Intel Corp. 440BX/ZX - 82443BX/ZX Host bridge (AGP disabled) (rev 02) 00:0b.0 VGA compatible controller: Cirrus Logic GD 5446 (rev 45) 00:0d.0 PCI bridge: Digital Equipment Corporation DECchip 21150 (rev 04) 00:0e.0 System peripheral: Compaq Computer Corporation Advanced System Management Controller 00:14.0 ISA bridge: Intel Corp. 82371AB PIIX4 ISA (rev 02) 00:14.1 IDE interface: Intel Corp. 82371AB PIIX4 IDE (rev 01) 00:14.2 USB Controller: Intel Corp. 82371AB PIIX4 USB (rev 01) 00:14.3 Bridge: Intel Corp. 82371AB PIIX4 ACPI (rev 02) 01:07.0 Network controller: Compaq Computer Corporation ProLiant Integrated Netelligent 10/100 (rev 10) 01:09.0 SCSI storage controller: LSI Logic / Symbios Logic (formerly NCR) 53c875 (rev 14) 01:09.1 SCSI storage controller: LSI Logic / Symbios Logic (formerly NCR) 53c875 (rev 14) 01:0a.0 USB Controller: VIA Technologies, Inc. UHCI USB (rev 50) 01:0a.1 USB Controller: VIA Technologies, Inc. UHCI USB (rev 50) 01:0a.2 USB Controller: VIA Technologies, Inc.: Unknown device 3104 (rev 51) 01:0d.0 PCI bridge: IBM IBM27-82351 (rev 07) 02:00.0 Unknown mass storage controller: Compaq Computer Corporation Smart-2/P RAID Controller (rev 03) Hope someone can help me...

How about the lsusb command? Did you try passing the pci=biosirq switch as suggested? Are you able to load the module by hand with modprobe? Try: # modprobe ehci-hcd pci=biosirq What was so weird about the BIOS?

Ok, got a little bit further. I thought it was strange that lspci returns an Intel USB-controller, and that one gave problems during booting. I configured the kernel with pci=biosirq and everything boots fine now. However, the lights on my ADSL-modem don't flip on when I plug it in, and there is no according entry in /proc/bus/usb/devices. So, the PCI card seems to be configured well, but I can't hook anything up. Any thoughts?

Is your modem supported under linux? Does it have a network connection that you could use instead of USB? You may need to download some drivers. Try googling for "linux" and the make and model of your modem....

The modem is surely supported, I run it on my laptop just fine. It just doesn't power on when I plug it in the server. By the way, how come there is a USB controller embedded in the chipset on the motherboard, but no ports present? Could this be the problem?

Perhaps there is a little break-out card which plugs into the mobo and provides a couple of ports...?