On Fri, 9 Dec 2005, Xiaofan Chen wrote: > Yes I plugged and unplugged several times until it is recognized again. > > Attached please find some more information. It seems to me if I unplug and > plug in PICkit 2 back slowly, it would be okay. If I unplug and plug back > a bit faster, then it starts to show problems. Is this normal among HID > device? Could it be that there is a possible firmware bug?
It is not normal at all. It could be a firmware bug, or a design flaw. Or it could simply be that the device requires a very long time to initialize. When you insert the plug slowly, you give the device the extra time it needs. (USB connectors are designed so that the power contacts are made before the data contacts.) Alan Stern ------------------------------------------------------- This SF.net email is sponsored by: Splunk Inc. Do you grep through log files for problems? Stop! Download the new AJAX search engine that makes searching your log files as easy as surfing the web. DOWNLOAD SPLUNK! http://ads.osdn.com/?ad_id=7637&alloc_id=16865&op=click _______________________________________________ Linux-usb-users@lists.sourceforge.net To unsubscribe, use the last form field at: https://lists.sourceforge.net/lists/listinfo/linux-usb-users
