--- cdc-acm.h.orig	2011-10-16 14:25:07.888670601 +0900
+++ cdc-acm.h	2011-10-16 14:25:26.620670761 +0900
@@ -6,6 +6,34 @@
  *
  */
 
+#define FOMA_SPECIFIC_INTERFACE 0x44
+#define USB_CDC_SUBCLASS_ACM_FOMA	(0x88)
+
+#define FOMA_BTYPE_AB_1	(0x01)
+#define FOMA_BTYPE_AB_2	(0x02)
+#define FOMA_BTYPE_AB_5 (0x05)
+#define FOMA_BTYPE_AB_6 (0x06)
+
+#define FOMA_BMODE_DEACTIVATED (0x00)
+#define FOMA_BMODE_MODEM	(0x01)
+#define FOMA_BMODE_AT_COMMAND_CONTROL	(0x02)
+#define FOMA_BMODE_OBEX	(0x60)
+#define FOMA_BMODE_VENDOR1	(0xc0)
+#define FOMA_BMODE_VENDOR2	(0xfe)
+#define FOMA_BMODE_UNLINKED (0xFF)
+
+#define	USB_RT_VENDORSPEC	(0x41)
+#define	USB_REQ_ACTIVATE_MODE	(0x60)
+#define	USB_REQ_SET_LINK	(0x62)
+#define	USB_REQ_CLEAR_LINK	(0x63)
+
+#define USB_DEVICE_FOMA(vend,cl,sc,pr) \
+	.match_flags = 0x0381,\
+	.idVendor = (vend),\
+	.bInterfaceClass = (cl), \
+	.bInterfaceSubClass = (sc),\
+	.bInterfaceProtocol = (pr)
+
 /*
  * CMSPAR, some architectures can't have space and mark parity.
  */
@@ -130,6 +158,16 @@
 	struct acm_wb *delayed_wb;			/* write queued for a device about to be woken */
 };
 
+/* "Mobile Abstract Control Model Specificl Descriptor" from MCPC GL-005 */
+struct foma_function_desc {
+	__u8	bFunctionLength;
+	__u8	bDescriptorType;
+	__u8	bDescriptorSubType;
+	__u8	bType;
+	__u8	bMode_0;
+	/* ... and there could be more Modes */
+} __attribute__ ((packed));
+
 #define CDC_DATA_INTERFACE_TYPE	0x0a
 
 /* constants describing various quirks and errors */