gs_alloc_req
request = gs_alloc_req(ep,
req = gs_alloc_req(ep, ep->maxpacket, GFP_ATOMIC);
EXPORT_SYMBOL_GPL(gs_alloc_req);
req = gs_alloc_req(ep, ep->maxpacket, GFP_ATOMIC);
struct usb_request *gs_alloc_req(struct usb_ep *ep, unsigned len, gfp_t flags);