Upstream libg15 propagates any error code from libusb to the caller,
and legacy libusb-0.1 uses standard codes from errno.h with minus sign
resulting in negative integers. Previous version of reinit-on-any-error
patch uses this fact and calls re_initLibG15() on any negative return
value of getPressedKeys().
The new libusb-1.0 uses its own error codes, not compatible with the
old ones. While rewriting libg15 to use the new library, I decided
to translate LIBUSB_ERROR_* codes to G15_ERROR_*, which are positive
integers. This change requires us to modify reinit-on-any-error patch
to call re_initLibG15() on any error code, not just a negative one.
Alexander Ponyatykh
7d071c32b7