diff --git a/hw/usb/desc.c b/hw/usb/desc.c
index 5dbe7545f540..f18a0435003a 100644
--- a/hw/usb/desc.c
+++ b/hw/usb/desc.c
@@ -6,16 +6,6 @@
 
 /* ------------------------------------------------------------------ */
 
-static uint8_t usb_lo(uint16_t val)
-{
-    return val & 0xff;
-}
-
-static uint8_t usb_hi(uint16_t val)
-{
-    return (val >> 8) & 0xff;
-}
-
 int usb_desc_device(const USBDescID *id, const USBDescDevice *dev,
                     uint8_t *dest, size_t len)
 {
diff --git a/hw/usb/desc.h b/hw/usb/desc.h
index ddd3e7485c7c..81327b0e7498 100644
--- a/hw/usb/desc.h
+++ b/hw/usb/desc.h
@@ -194,6 +194,17 @@ struct USBDesc {
 
 #define USB_DESC_FLAG_SUPER (1 << 1)
 
+/* little helpers */
+static inline uint8_t usb_lo(uint16_t val)
+{
+    return val & 0xff;
+}
+
+static inline uint8_t usb_hi(uint16_t val)
+{
+    return (val >> 8) & 0xff;
+}
+
 /* generate usb packages from structs */
 int usb_desc_device(const USBDescID *id, const USBDescDevice *dev,
                     uint8_t *dest, size_t len);