diff --git a/drivers/usb/gadget/function/f_gsi.c b/drivers/usb/gadget/function/f_gsi.c
index 738f20d935d6..af20033b621f 100644
--- a/drivers/usb/gadget/function/f_gsi.c
+++ b/drivers/usb/gadget/function/f_gsi.c
@@ -1984,6 +1984,10 @@ static int gsi_set_alt(struct usb_function *f, unsigned intf, unsigned alt)
 
 	atomic_set(&gsi->connected, 1);
 
+	/* send 0 len pkt to qti to notify state change */
+	if (gsi->prot_id == IPA_USB_DIAG)
+		gsi_ctrl_send_cpkt_tomodem(gsi, NULL, 0);
+
 	return 0;
 
 notify_ep_disable: