On Wed, 21 Oct 2015, Steinar H. Gunderson wrote: > On Wed, Oct 21, 2015 at 09:49:16AM +0800, Lu, Baolu wrote: > > I could spend some time on this issue a week later. > > I'd like to check whether there is any bugs in the driver itself. > > Otherwise, blacklist this specific device for LPM. > > Is there such a blacklist already, where I can add the devices (there are two > distinct IDs behaving identically) and see if it helps? There is a blacklist, but it does not affect LPM. See drivers/usb/core/quirks.c and include/linux/usb/quirks.h. 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