On Friday 11 March 2005 1:49 am, Andrew Morton wrote: > > > http://bugme.osdl.org/show_bug.cgi?id=4325 > ... > > HID: (in non conflicting port) > usb 3-1.1: new low speed USB device using ohci_hcd and address 3 > usb 3-1.2: new low speed USB device using ohci_hcd and address 4 > input: USB HID v1.00 Mouse [KYE Genius USB Wheel Mouse] on > usb-0000:00:02.1-1.1 > input: USB HID v1.10 Keyboard [CHICONY USB Keyboard] on usb-0000:00:02.1-1.2 > > interrupts: > > > 0: 4440474 IO-APIC-edge timer > > 2: 0 XT-PIC cascade > > 3: 1193 IO-APIC-edge NVidia nForce2 > > ****** probably the problem ?? ****** > 5: 27926 IO-APIC-edge ohci1394, ohci_hcd:usb2, eth0 >
I assume otherwise, since it said above that the device is on "usb3"! > ************************************* > 8: 27042 IO-APIC-edge rtc > > 9: 0 XT-PIC ehci_hcd:usb1 > > 11: 59151 IO-APIC-edge libata, ohci_hcd:usb3 One thing that seems fairly obviously broken is the assignment of the OHCI hardware to an edge triggered IRQ. So far as I know, all OHCI controllers are level triggered. And FWIW I have an NF2 box here, which assigns OHCI to IRQs #20 and #22, EHCI to IRQ #22, and eth0 (forcedeth) to share IRQ #22 ... all level triggered.. > 14: 19 IO-APIC-edge ide0 > > 15: 4506 IO-APIC-edge ide1 > > 19: 200000 IO-APIC-level [EMAIL PROTECTED]:2:0:0 > > NMI: 0 > > LOC: 4440242 > > ERR: 0 > > MIS: 0 So basically this looks like whatever is setting up your IRQs is borked ... Related issue, I think that the Linux IRQ framework needs much better handling of level vs edge stuff. It should be possible for drivers to specify level triggering (vs rising edge, falling edge, etc); they know what the hardware does, better than any generic infrastructure. The fact that it's even possible to get the wrong type of IRQ triggering says to me that the API is deficient. (Another thing saying that is noticing that ARM needs API extensions in that area.) - Dave ------------------------------------------------------- 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=6595&alloc_id=14396&op=click _______________________________________________ [email protected] To unsubscribe, use the last form field at: https://lists.sourceforge.net/lists/listinfo/linux-usb-devel
