v4.19.13 snapshot.
diff --git a/include/linux/usb/ezusb.h b/include/linux/usb/ezusb.h
new file mode 100644
index 0000000..4870471
--- /dev/null
+++ b/include/linux/usb/ezusb.h
@@ -0,0 +1,9 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef __EZUSB_H
+#define __EZUSB_H
+
+extern int ezusb_fx1_set_reset(struct usb_device *dev, unsigned char reset_bit);
+extern int ezusb_fx1_ihex_firmware_download(struct usb_device *dev,
+					    const char *firmware_path);
+
+#endif /* __EZUSB_H */