On 2013-08-28 21:37, Alan Stern wrote: >>> No, if you unload the ohci-hcd driver then the webcam won't be used. >>> Are you certain that merely stopping the daemon program will prevent >>> the problem? >> >> Quite certain but retesting can confirm that. > > Maybe without activity, the OHCI controller goes into suspend. You can > prevent it by doing: > > echo on >/sys/bus/pci/devices/0000:00:13.1/usb?/power/control /sys/bus/pci/devices/0000:00:13.0 has a file irq containing 18. subdirectory usb8 under there has no power/control subdir/file. Is this a configuration issue or kernel version difference? > By the way, since you switched to the new computer, are there any > devices attached to this USB bus other than the webcam? The wired mouse (logitech M-BD58) is connected via usb. > Also, at one point you had a second webcam attached to a different OHCI > controller, as well as a Bluetooth device and a USB-serial device. > Are they still present? Nope. Presently not connected. I'll have some hubs this weekend to play with. Udo -- 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
