Léo Lam 32a1b5068a Revert "Use a single libusb context"
This reverts commit c8a6dc6c23a5efe99b4bf937003ba3f2f7f8f200.

libusb on Windows isn't really safe to use from different threads
with a single context.
2017-03-26 15:58:30 +02:00
..
2017-03-08 01:24:10 -08:00
2017-03-08 01:24:10 -08:00
2017-03-08 01:24:10 -08:00