musb_g_giveback
musb_g_giveback(musb_ep, request, -ECONNRESET);
musb_g_giveback(musb_ep, request, -ECONNRESET);
musb_g_giveback(musb_ep, request, -ECONNRESET);
musb_g_giveback(ep, &req->request, status);
musb_g_giveback(musb_ep, request, 0);
musb_g_giveback(musb_ep, request, 0);
musb_g_giveback(musb_ep, request, 0);
extern void musb_g_giveback(struct musb_ep *, struct usb_request *, int);
musb_g_giveback(&musb->endpoints[0].ep_in, req, 0);