variable is overwritten if a libusb user attempts to open the same ugen(4)
device multiple times.
This was observed with scanimage from sane-backends and broke scanning.
ok mpi@
dropping maintainer as req'd by mpi (passed on via William Orr).
the nonstandard DEBUG handling (enabling verbose debug messages) has
moved to a flavour.
first device and don't use the new bConfigurationValue for the index
when caching the config descriptor.
Fix scanning problems reported and tested by ajacoutot@
It is now possible to have a read access and submit control transfers to
all USB devices using libusb, please note that controllers and hubs also
appear as devices.
Requested by many, tested by and ok ajacoutot@, jasper@, henning@, shten@