using multiple usbasp connected to PC in the same time

[Klaus Rudolph]

Hi all,

I have a setup with 3 microncontrollers and want to update all of them
via script using avrdude and 3 usbasp devices each one after another.

Is there any chance to select the devices? Currently I only provide the
"-c" option to select usbasp in general but I have no idea how to select
a specific device on the USB bus.

Any idea?

Klaus