Hello,
I'm trying to update a program to support the new pyUSB 1.x. I'm having
several issues:
First of all, legacy support isn't being compatible -- this is because the
code uses the bus and dev numbers, such as 002:005, to indicate a unique
device. The code needs to be able to express the fact that there are
possibly many devices of the exact same type plugged in, and that is one of
the reasons this numbering scheme allows us to make a short identifier
accessible to the user. When pyUSB 1.x loads and does the usb.legacy
import, I then don't get these numbers back. The first place the code uses
them is when it scans for devices, and reports them in part using:
''.join([bus.dirname + ":" + dev.filename])
In the new code, I think I'd do a find_all to get all the devices I want,
but then how do I give the user nice selectors they can feed back in to
choose which device to use for specific things?
The other issue is I don't see an elegant way to know which version of
pyUSB I have installed at runtime, so that I can have the code handle
things differently, if needed. Currently what I found is to try to import
usb.core and if it fails, I know I'm in the 0.x code, and if it succeeds, I
know I'm in 1.x. Anyone have better ideas?
Thanks!
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