On Sun, 4 Dec 2005, Xiaofan Chen wrote:

> Microchip PICkit 2 MCU programmer is a low cost USB full speed
> programmer for Microchip MCUs. Thanks to the open firmware
> we have developed libusb based application (one C based and one
> Python based using BitPim libusb wrapper) to control it under
> Linux. It has dual configuration (HID and vendor specific).
> 
> There is still a problem with hotplugging PICkit 2. Often we need to
> plug and unplug it several times in order to get it appeared in lsusb.
> 
> Regards,
> Xiaofan Chen
> http://groups.google.com/group/pickit-devel/
> 
> 
> [EMAIL PROTECTED]:/etc/hotplug/usb$ uname -a
> Linux ubuntu 2.6.10-5-k7 #1 Tue Apr 5 12:56:05 UTC 2005 i686 GNU/Linux

Try using a more recent kernel, like 2.6.14.  In 2.6.10 there is a 
timing bug related to USB device detection and initialization.

It's also possible that your problem is caused by a bad cable or a bad
cable connection.

Alan Stern



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