Don't bother Toni with usb on Windows
The better thing to do is to use a pass thru via an external dll and libusb (or libusbX) directly.
Like that:
http://aminet.net/package/driver/other/anaiis_hostusb
of course it *works* (with a lot of limitations) with ANAIIS, not Poseidon.
The only use is gamepad with return force in amiga games.
SJA_RumbleSetSlowMotor, SJA_RumbleSetFastMotor and SJA_RumbleOff tags of lowlevel.library extensions.