OS X has not always exposed the interface number of HID devices. The current master branch of HIDAPI has a workaround for this, but the current homebrew formula builds from a really old commit in the HIDAPI repo (0.8.0-rc1from 2013).
It looks like there is a proper fix here which requires patching this line.
To make things easier for OS X users, a static build needs to be made for OS X which bundles a recent/patched version of the HIDAPI library.
OS X has not always exposed the interface number of HID devices. The current master branch of HIDAPI has a workaround for this, but the current homebrew formula builds from a really old commit in the HIDAPI repo (0.8.0-rc1from 2013).
It looks like there is a proper fix here which requires patching this line.
To make things easier for OS X users, a static build needs to be made for OS X which bundles a recent/patched version of the HIDAPI library.