Fix USBD issue

Solve the issue that the transmission length is a multiple of max.packet size. Change-Id: I88fe2574103d19945441ce928d523ef9ab6474e1
OpenNuvoton · Apr 29, 2024 · aa146d4 · aa146d4
1 parent 480f943
commit aa146d4
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/drivers/usb/gadget/udc/nuc980_udc.c b/drivers/usb/gadget/udc/nuc980_udc.c
@@ -255,7 +255,7 @@ static int write_fifo(struct nuc980_ep *ep, struct nuc980_request *req)
 	len = write_packet(ep, req);
 
 	/* last packet is often short (sometimes a zlp) */
-	if (req->req.length == req->req.actual/* && !req->req.zero*/)
+	if (((req->req.length == req->req.actual) && (len % ep->ep.maxpacket)) || (len == 0))
 	{
 		done(ep, req, 0);
 		return 1;