Hi, On Saturday, 16 September 2006 00:13, Rafael J. Wysocki wrote: > It looks like the ohci_hcd driver sometimes has problems with the > initialization (eg. USB mouse doesn't work after a fresh boot and reloading > of the driver helps). > > I have observed this on two different x86_64 boxes (HPC 6325, Asus L5D), > but it is not readily reproducible. Anyway I've got a dmesg output from a > failing case which is attached.
Actually, the problem is ohci_hcd doesn't seem to recognize devices plugged into the USB ports. For example, if I unplug and replug a mouse (that worked before unplugging), it doesn't work any more. I have to reload ohci_hcd to make it work again. This is 100% reproducible and occurs on the two boxes above. Appended in a snippet from a dmesg output that I think is relevant to this issue. It covers the unplugging and replugging of a USB mouse (there are no more USB-related messages in the dmesg). Greetings, Rafael hub 3-0:1.0: state 7 ports 4 chg 0000 evt 0010 ohci_hcd 0000:00:13.1: GetStatus roothub.portstatus [3] = 0x00030100 PESC CSC PPS hub 3-0:1.0: port 4, status 0100, change 0003, 12 Mb/s usb 3-4: USB disconnect, address 2 usb 3-4: unregistering device usb 3-4: usb_disable_device nuking all URBs ohci_hcd 0000:00:13.1: shutdown urb ffff81002f77d4b8 pipe 40408280 ep1in-intr usb 3-4: unregistering interface 3-4:1.0 PM: Removing info for No Bus:usbdev3.2_ep81 usbdev3.2_ep81: ep_device_release called for usbdev3.2_ep81 PM: Removing info for usb:3-4:1.0 usb 3-4:1.0: uevent PM: Removing info for No Bus:usbdev3.2 PM: Removing info for No Bus:usbdev3.2_ep00 usbdev3.2_ep00: ep_device_release called for usbdev3.2_ep00 PM: Removing info for usb:3-4 usb 3-4: uevent hub 3-0:1.0: debounce: port 4: total 100ms stable 100ms status 0x100 hub 1-0:1.0: state 7 ports 8 chg 0000 evt 0100 ehci_hcd 0000:00:13.2: GetStatus port 8 status 001403 POWER sig=k CSC CONNECT hub 1-0:1.0: port 8, status 0501, change 0001, 480 Mb/s hub 1-0:1.0: debounce: port 8: total 100ms stable 100ms status 0x501 ehci_hcd 0000:00:13.2: port 8 low speed --> companion ehci_hcd 0000:00:13.2: GetStatus port 8 status 003002 POWER OWNER sig=se0 CSC -- You never change things by fighting the existing reality. R. Buckminster Fuller ------------------------------------------------------------------------- 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-devel@lists.sourceforge.net To unsubscribe, use the last form field at: https://lists.sourceforge.net/lists/listinfo/linux-usb-devel