fix hid

internal/usbip/server.go

@@ -414,16 +414,11 @@ func (s *Server) handleCmdSubmit(r io.Reader, hdr *URBHeader, retChan chan<- []b
 			// device's endpoint state without updating the kernel's internal USB
 			// subsystem, breaking all subsequent SETINTERFACE and SUBMITURB calls
 			// (ESRCH / EHOSTUNREACH).
-			// Just reset host-side data toggles to DATA0 (matching the fresh VHCI
-			// state on the use-side) and return success.
-			log.Printf("[usbip-server] SET_CONFIGURATION(%d) intercepted (device already configured), resetting endpoint toggles", wValue)
-			for epNum := range s.epTypes {
-				if epNum == 0 {
-					continue
-				}
-				s.handle.ResetEndpoint(uint32(epNum))
-				s.handle.ResetEndpoint(uint32(epNum) | 0x80)
-			}
+			// Do NOT reset host-side data toggles either: after DisconnectClaimInterface
+			// the host and device toggles are already in sync. Resetting host-side
+			// toggles to DATA0 would create a mismatch (device still at its current
+			// toggle), causing the first interrupt packet to be silently discarded.
+			log.Printf("[usbip-server] SET_CONFIGURATION(%d) intercepted (device already configured)", wValue)
 
 		default:
 			// Generic OUT control transfer
@@ -647,9 +642,27 @@ func (s *Server) reapLoop(retChan chan<- []byte, done <-chan struct{}) {
 			continue
 		}
 
+		dirStr := "OUT"
+		if pending.direction == DirIn {
+			dirStr = "IN"
+		}
+		urbType := s.getURBType(uint8(pending.endpoint))
+		typeNames := map[uint8]string{0: "ISO", 1: "INT", 2: "CTRL", 3: "BULK"}
+
 		if urbInfo.Status != 0 {
-			log.Printf("[usbip-server] URB completed: seq=%d ep=%d status=%d actual=%d iso=%v",
-				pending.seqNum, pending.endpoint, urbInfo.Status, urbInfo.ActualLength, pending.isISO)
+			log.Printf("[usbip-server] URB completed: seq=%d EP%d %s type=%s status=%d actual=%d",
+				pending.seqNum, pending.endpoint, dirStr, typeNames[urbType], urbInfo.Status, urbInfo.ActualLength)
+		} else if urbType == 1 { // interrupt — always log for HID debugging
+			hexStr := ""
+			if pending.direction == DirIn && urbInfo.ActualLength > 0 {
+				n := int(urbInfo.ActualLength)
+				if n > 16 {
+					n = 16
+				}
+				hexStr = fmt.Sprintf(" data=%x", pending.buffer[:n])
+			}
+			log.Printf("[usbip-server] INT completed: seq=%d EP%d %s actual=%d%s",
+				pending.seqNum, pending.endpoint, dirStr, urbInfo.ActualLength, hexStr)
 		}
 
 		var resp []byte