Index: umsm.c
===================================================================
RCS file: /cvs/src/sys/dev/usb/umsm.c,v
retrieving revision 1.121
diff -u -p -r1.121 umsm.c
--- umsm.c	9 Apr 2022 20:07:44 -0000	1.121
+++ umsm.c	17 Jun 2022 07:08:06 -0000
@@ -109,8 +109,9 @@ struct umsm_type {
 #define	DEV_UMASS6	0x0200
 #define	DEV_UMASS7	0x0400
 #define	DEV_UMASS8	0x1000
+#define	DEV_UMASS8	0x2000
 #define DEV_UMASS	(DEV_UMASS1 | DEV_UMASS2 | DEV_UMASS3 | DEV_UMASS4 | \
-    DEV_UMASS5 | DEV_UMASS6 | DEV_UMASS7 | DEV_UMASS8)
+    DEV_UMASS5 | DEV_UMASS6 | DEV_UMASS7 | DEV_UMASS8 | DEV_UMASS9)
 };
 
 static const struct umsm_type umsm_devs[] = {
@@ -133,7 +134,7 @@ static const struct umsm_type umsm_devs[
 	{{ USB_VENDOR_HUAWEI,	USB_PRODUCT_HUAWEI_E182 }, DEV_UMASS5},
 	{{ USB_VENDOR_HUAWEI,	USB_PRODUCT_HUAWEI_E1820 }, DEV_UMASS5},
 	{{ USB_VENDOR_HUAWEI,	USB_PRODUCT_HUAWEI_E220 }, DEV_HUAWEI},
-	{{ USB_VENDOR_HUAWEI,	USB_PRODUCT_HUAWEI_E303 }, DEV_UMASS5},
+	{{ USB_VENDOR_HUAWEI,	USB_PRODUCT_HUAWEI_E303 }, DEV_UMASS9},
 	{{ USB_VENDOR_HUAWEI,	USB_PRODUCT_HUAWEI_E353_INIT }, DEV_UMASS5},
 	{{ USB_VENDOR_HUAWEI,	USB_PRODUCT_HUAWEI_E510 }, DEV_HUAWEI},
 	{{ USB_VENDOR_HUAWEI,	USB_PRODUCT_HUAWEI_E618 }, DEV_HUAWEI},
@@ -738,6 +739,14 @@ umsm_umass_changemode(struct umsm_softc 
 		cbw.CBWCDB[0] = 0xf0;
 		cbw.CBWCDB[1] = 0x01;
 		cbw.CBWCDB[2] = 0x03;
+		break;
+	case DEV_UMASS9:
+		cbw.bCBWFlags = CBWFLAGS_OUT;
+		cbw.bCDBLength = 10;
+		cbw.CBWCDB[0] = 0x11;
+		cbw.CBWCDB[1] = 0x06;
+		cbw.CBWCDB[2] = 0x20;
+		cbw.CBWCDB[8] = 0x01;
 		break;
 	default:
 		DPRINTF(("%s: unknown device type.\n", sc->sc_dev.dv_xname));