On Sat, 21 Oct 2006, Oscar Rodriguez Fonseca wrote: > I have an intel based (ICH6 centrino) laptop. USB2 worked fine when I > first installed linux (plain debian sarge, cannot remember kernel > version due to some problems during install). I have upgraded the kernel > three or four times since then. > > A week ago I realized that ehci-hcd was not loading and `lspci -v` is > not showing up the EHCI host: > > ---- Relevant snip from lspci -v ---- > 00:1d.0 USB Controller: Intel Corporation 82801FB/FBM/FR/FW/FRW (ICH6 > Family) USB UHCI #1 (rev 04) (prog-if 00 [UHCI]) > Subsystem: Uniwill Computer Corp Unknown device 9050 > Flags: bus master, medium devsel, latency 0, IRQ 20 > I/O ports at e480 [size=32] > > 00:1d.1 USB Controller: Intel Corporation 82801FB/FBM/FR/FW/FRW (ICH6 > Family) USB UHCI #2 (rev 04) (prog-if 00 [UHCI]) > Subsystem: Uniwill Computer Corp Unknown device 9050 > Flags: bus master, medium devsel, latency 0, IRQ 18 > I/O ports at e800 [size=32] > > 00:1d.2 USB Controller: Intel Corporation 82801FB/FBM/FR/FW/FRW (ICH6 > Family) USB UHCI #3 (rev 04) (prog-if 00 [UHCI]) > Subsystem: Uniwill Computer Corp Unknown device 9050 > Flags: bus master, medium devsel, latency 0, IRQ 19 > I/O ports at e880 [size=32] > > 00:1d.3 USB Controller: Intel Corporation 82801FB/FBM/FR/FW/FRW (ICH6 > Family) USB UHCI #4 (rev 04) (prog-if 00 [UHCI]) > Subsystem: Uniwill Computer Corp Unknown device 9050 > Flags: bus master, medium devsel, latency 0, IRQ 16 > I/O ports at ec00 [size=32] > ----- End of snip ----- > > I remember having one "00:1d.7 USB Controller... EHCI" line that is not > there anymore. > > Any clue of what is happening? I have already tried some kernel boot > parameters (noapic, nolapic, acpi=off, pci=noacpi, irqpoll) getting > always the same result. Modprobing ehci_hcd do nothing more than loading > the module. > > Usb2 (High speed) devices are loaded and work in compatibility mode > (full speed). > > TIA for your help.
One possibility is that the BIOS settings have somehow been changed so that the EHCI controller is now disabled. Check the setup. Another possibility is that the EHCI controller has broken and no longer works correctly. Alan Stern ------------------------------------------------------------------------- Using Tomcat but need to do more? Need to support web services, security? Get stuff done quickly with pre-integrated technology to make your job easier Download IBM WebSphere Application Server v.1.0.1 based on Apache Geronimo http://sel.as-us.falkag.net/sel?cmd=lnk&kid=120709&bid=263057&dat=121642 _______________________________________________ Linux-usb-users@lists.sourceforge.net To unsubscribe, use the last form field at: https://lists.sourceforge.net/lists/listinfo/linux-usb-users
