--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/fuhtark_test/include/ddk/d4iface.h	Wed Nov 26 21:36:48 2025 +0700
@@ -0,0 +1,47 @@
+#ifndef _DOT4_IFACE_H
+#define _DOT4_IFACE_H
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+typedef unsigned long CHANNEL_HANDLE;
+typedef CHANNEL_HANDLE *PCHANNEL_HANDLE;
+
+typedef struct _DOT4_ACTIVITY
+{
+  ULONG ulMessage;
+  ULONG ulByteCount;
+  CHANNEL_HANDLE hChannel;
+} DOT4_ACTIVITY, *PDOT4_ACTIVITY;
+
+#define DOT4_MAX_CHANNELS                 128
+#define NO_TIMEOUT                          0
+#define STREAM_TYPE_CHANNEL                 1
+#define PACKET_TYPE_CHANNEL                 2
+#define DOT4_STREAM_RECEIVED            0x100
+#define DOT4_STREAM_CREDITS             0x101
+#define DOT4_MESSAGE_RECEIVED           0x102
+#define DOT4_DISCONNECT                 0x103
+#define DOT4_CHANNEL_CLOSED             0x105
+#define DOT4_CHANNEL                    0
+#define HP_MESSAGE_PROCESSOR            1
+#define PRINTER_CHANNEL                 2
+#define SCANNER_CHANNEL                 4
+#define MIO_COMMAND_PROCESSOR           5
+#define ECHO_CHANNEL                    6
+#define FAX_SEND_CHANNEL                7
+#define FAX_RECV_CHANNEL                8
+#define DIAGNOSTIC_CHANNEL              9
+#define HP_RESERVED                     10
+#define IMAGE_DOWNLOAD                  11
+#define HOST_DATASTORE_UPLOAD           12
+#define HOST_DATASTORE_DOWNLOAD         13
+#define CONFIG_UPLOAD                   14
+#define CONFIG_DOWNLOAD                 15
+
+#ifdef __cplusplus
+}
+#endif
+#endif
+