Initialize the HIDAPI library.
Returns 0 on success and -1 on error.
This function initializes the HIDAPI library. Calling it is not strictly necessary, as it will be called automatically by SDL_hid_enumerate() and any of the SDL_hid_open_*() functions if it is needed. This function should be called at the beginning of execution however, if there is a chance of HIDAPI handles being opened by different threads simultaneously.
Each call to this function should have a matching call to SDL_hid_exit()
This function is available since SDL 2.0.18.