[bug #59420] No PORT number

[Joerg Wunsch]

Follow-up Comment #1, bug #59420 (project avrdude):

There is no option to specify a "port" number. USB works by walking through
all attached devices, and look for the VID/PID combination you're seeing in
the message. The first one found is then used.

(For some other programmers, an additional serial# could be provided, to
disambiguate multiple attached programmers. USBasp doesn't offer a serial
number feature though.)

In your case, there's simply no matchinng device found.

Since you're using Windows: make sure you have been setting up libusb
correctly. Unlike non-Windows systems (where all devices with appropriate
permissions are always found), on Windows, you explicitly have to assign any
desired device for libusb usage.

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