Am Donnerstag, 26. November 2009 04:13:41 schrieb Alan Stern: > > Please see the dmesgs of the 500 - 900 us runs in the attached > > archive. The 900 us have been tested with more than 80 modprobe / > > rmmod rounds, with 1.0 s and 0.5 s delay. > > So the delay should be set to 1000 us, to include a margin of safety. > That's a long time to delay, but it's the easiest solution. That would be fine with me. Are there any adverse effects one should watch out for? > > I am curious, if I understand correctly that this is a chipset issue? > > If so, why has it not been triggered with other USB devices? > > So the answer is that with other USB devices, either the driver doesn't > start up a periodic transfer when the device file is opened, or else > programs opening the device file keep it open for longer than 900 us. Thanks for clarifying! Is there anything left for me todo at the moment? Cheers, Stephan -- 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
