usb_ugen_open
rval = usb_ugen_open(hidp->hid_ugen_hdl, devp, flag,
rval = usb_ugen_open(usbprnp->usbprn_ugen_hdl,
return (usb_ugen_open(ugen_skelp->ugen_skel_hdl, devp, flag,
rval = usb_ugen_open(scsa2usbp->scsa2usb_ugen_hdl, devp, flag,
rval = usb_ugen_open(usb_mid->mi_ugen_hdl, devp, flags, otyp,
int usb_ugen_open(usb_ugen_hdl_t, dev_t *, int, int, cred_t *);