On Mon, 2016-09-05 at 14:01 +0300, Dmitry Gutov wrote: > On 05.09.2016 13:42, Oliver Neukum wrote: > > > This very much looks like power saving misbehaving. > > It does. But it doesn't seem like my distro enables autosuspend there by > default. > > > Are you using autosuspend on this device? > > $ lsusb > ... > Bus 002 Device 002: ID 357d:7788 Sharkoon QuickPort XT > ... > > $ cat /sys/bus/usb/devices/usb2/2-1/power/control > on > > $ cat /sys/bus/usb/devices/usb2/2-2/power/control > on OK > > > Have you tried the RESET_RESUME quirk on the USB > > level? > > How do I do that? You add the device to the kernel quirks list. But if you don't use autosuspend, the point is moot. Do you use LPM, as described in Documentation/usb/power-management.txt ? Regards Oliver -- 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
