On Thu, 20 Feb 2014, Dennis New wrote: > > Anyway, I finally got around to writing a diagnostic patch for you to > > try. This should be applied with no other patches present. It > > requires CONFIG_USB_DEBUG to be enabled, and it should add a fair > > amount of debugging information to the dmesg log when your problem > > occurs. > > > > Let's see what shows up. > > I didn't get any special output this time, with the applied patch. I > have CONFIG_USB_DEBUG=y. Is there some other kind of verbosity/debugging > setting that I should have enabled? :s No. > As usual, after I unplug the usb audio device, > no other usb device will even get power when I try to plug it in -- > i.e. the whole usb system is effectively "shutdown". > > The last relevant dmesg output is: > > [22436.857502] input: Logitech Logitech Wireless Headset as > /devices/pci0000:00/0000:00:13.1/usb3/3-1/3-1:1.3/0003:046D:0A29.0002/input/input26 > [22436.857951] hid-generic 0003:046D:0A29.0002: input: USB HID v1.11 Device > [Logitech Logitech Wireless Headset] on usb-0000:00:13.1-1/input3 > [25540.988369] usb 3-1: USB disconnect, device number 3 > [25556.224967] usb 3-1: new full-speed USB device number 4 using ohci-pci > [25556.477964] usb 3-1: New USB device found, idVendor=046d, idProduct=0a29 > [25556.477974] usb 3-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3 > [25556.477980] usb 3-1: Product: Logitech Wireless Headset > [25556.477984] usb 3-1: Manufacturer: Logitech > [25556.477988] usb 3-1: SerialNumber: 000D44B9714E > [25556.627203] input: Logitech Logitech Wireless Headset as > /devices/pci0000:00/0000:00:13.1/usb3/3-1/3-1:1.3/0003:046D:0A29.0003/input/input27 > [25556.627658] hid-generic 0003:046D:0A29.0003: input: USB HID v1.11 Device > [Logitech Logitech Wireless Headset] on usb-0000:00:13.1-1/input3 > [25876.723713] usb 3-1: USB disconnect, device number 4 > [25877.722992] timeout: still 3 active urbs on EP #3 That's weird. Are you sure you were running the patched kernel? There very definitely should have been a bunch of debugging output, at the point where the headset was unplugged if not before. > Should I enable CONFIG_DEBUG_KERNEL as well? That's not necessary. Alan Stern -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
