usb_alloc_ctrl_req
if ((ctrl_req = usb_alloc_ctrl_req(hidp->hid_dip, length, 0)) == NULL) {
if ((bp->b_private = request = usb_alloc_ctrl_req(
return (usb_alloc_ctrl_req(dip, len, flags));
reqp = usb_alloc_ctrl_req(ugenp->ug_dip, wLength, USB_FLAGS_NOSLEEP);
ctrl_req = usb_alloc_ctrl_req(dip,
usb_ctrl_req_t *usb_alloc_ctrl_req(