I've just tried to use the new version of AVRDUDE GUI v2.0, as posted on the sites opening page, as it may sort out how I distribute code updates to customers.
But I'm struggling, I don't use AVRdude so it may be something simple.
Genuine AVRISP mk2 on USB, via hub
Avrdude 5.11-Patch#7610 as supplied with AVRDUDE GUI
Command line sent to avrdude...
avrdude.exe -p ATMEGA32 -c avrispmkII -P usb -v -U fuse:r:"fuse.txt":r -U lfuse:r:"lfuse.txt":r -U hfuse:r:"hfuse.txt":r -U efuse:r:"efuse.txt":r -U signature:r:"signat.txt":r
Using Port : usb Using Programmer : avrispmkII avrdude.exe: usbdev_open(): did not find any USB device "usb"
I know the AVRUSB works because I can talk to it in Studio v6 and Codevision.