Try the following diff, you'll have to run make in
sys/dev/usb after applying.
Index: usbdevs
===================================================================
RCS file: /cvs/src/sys/dev/usb/usbdevs,v
retrieving revision 1.598
diff -u -p -r1.598 usbdevs
--- usbdevs 7 Mar 2013 23:39:14 -0000 1.598
+++ usbdevs 23 Apr 2013 09:34:55 -0000
@@ -4045,6 +4045,7 @@ product UNKNOWN3 ZD1211B 0x1233 ZD1211B
/* Unknown vendor 4 */
product UNKNOWN4 DM9601 0x8101 DM9601
+product UNKNOWN4 DM9601_2 0x9700 DM9601
/* Unknown vendor 5 */
product UNKNOWN5 NF_RIC 0x0001 NF RIC
Index: if_udav.c
===================================================================
RCS file: /cvs/src/sys/dev/usb/if_udav.c,v
retrieving revision 1.61
diff -u -p -r1.61 if_udav.c
--- if_udav.c 28 Mar 2013 03:58:03 -0000 1.61
+++ if_udav.c 23 Apr 2013 09:35:15 -0000
@@ -165,6 +165,7 @@ static const struct udav_type {
{{ USB_VENDOR_SHANTOU, USB_PRODUCT_SHANTOU_ZT6688 }, 0 },
{{ USB_VENDOR_SHANTOU, USB_PRODUCT_SHANTOU_ADM8515 }, 0 },
{{ USB_VENDOR_UNKNOWN4, USB_PRODUCT_UNKNOWN4_DM9601 }, 0 },
+ {{ USB_VENDOR_UNKNOWN4, USB_PRODUCT_UNKNOWN4_DM9601_2 }, 0 },
{{ USB_VENDOR_UNKNOWN6, USB_PRODUCT_UNKNOWN6_DM9601 }, 0 }
};
#define udav_lookup(v, p) ((struct udav_type *)usb_lookup(udav_devs, v, p))
