diff --git a/include/Makefile.in b/include/Makefile.in
index 499c5d4001f..c02199dcb81 100644
--- a/include/Makefile.in
+++ b/include/Makefile.in
@@ -252,6 +252,7 @@ SRCDIR_INCLUDES = \
 	ddeml.h \
 	ddk/compstui.h \
 	ddk/csq.h \
+	ddk/hidclass.h \
 	ddk/hidsdi.h \
 	ddk/imm.h \
 	ddk/mountmgr.h \
diff --git a/include/ddk/hidclass.h b/include/ddk/hidclass.h
new file mode 100644
index 00000000000..81f892d19fe
--- /dev/null
+++ b/include/ddk/hidclass.h
@@ -0,0 +1,63 @@
+/*
+ * Copyright (C) 2015 Aric Stewart
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
+ */
+#ifndef __HIDCLASS_H
+#define __HIDCLASS_H
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+DEFINE_GUID (GUID_DEVINTERFACE_HID, \
+  0x4D1E55B2L, 0xF16F, 0x11CF, 0x88, 0xCB, 0x00, 0x11, 0x11, 0x00, 0x00, 0x30);
+
+#define HID_CTL_CODE(id) \
+  CTL_CODE (FILE_DEVICE_KEYBOARD, (id), METHOD_NEITHER, FILE_ANY_ACCESS)
+#define HID_BUFFER_CTL_CODE(id) \
+  CTL_CODE (FILE_DEVICE_KEYBOARD, (id), METHOD_BUFFERED, FILE_ANY_ACCESS)
+#define HID_IN_CTL_CODE(id) \
+  CTL_CODE (FILE_DEVICE_KEYBOARD, (id), METHOD_IN_DIRECT, FILE_ANY_ACCESS)
+#define HID_OUT_CTL_CODE(id) \
+  CTL_CODE (FILE_DEVICE_KEYBOARD, (id), METHOD_OUT_DIRECT, FILE_ANY_ACCESS)
+
+#define IOCTL_GET_PHYSICAL_DESCRIPTOR         HID_OUT_CTL_CODE(102)
+#define IOCTL_HID_FLUSH_QUEUE                 HID_CTL_CODE(101)
+#define IOCTL_HID_GET_COLLECTION_DESCRIPTOR   HID_CTL_CODE(100)
+#define IOCTL_HID_GET_COLLECTION_INFORMATION  HID_BUFFER_CTL_CODE(106)
+#define IOCTL_HID_GET_FEATURE                 HID_OUT_CTL_CODE(100)
+#define IOCTL_HID_GET_HARDWARE_ID             HID_OUT_CTL_CODE(103)
+#define IOCTL_HID_GET_INDEXED_STRING          HID_OUT_CTL_CODE(120)
+#define IOCTL_HID_GET_INPUT_REPORT            HID_OUT_CTL_CODE(104)
+#define IOCTL_HID_GET_MANUFACTURER_STRING     HID_OUT_CTL_CODE(110)
+#define IOCTL_GET_NUM_DEVICE_INPUT_BUFFERS    HID_BUFFER_CTL_CODE(104)
+#define IOCTL_HID_GET_POLL_FREQUENCY_MSEC     HID_BUFFER_CTL_CODE(102)
+#define IOCTL_HID_GET_PRODUCT_STRING          HID_OUT_CTL_CODE(111)
+#define IOCTL_HID_GET_SERIALNUMBER_STRING     HID_OUT_CTL_CODE(112)
+#define IOCTL_HID_SET_FEATURE                 HID_IN_CTL_CODE(100)
+#define IOCTL_SET_NUM_DEVICE_INPUT_BUFFERS    HID_BUFFER_CTL_CODE(105)
+#define IOCTL_HID_SET_OUTPUT_REPORT           HID_IN_CTL_CODE(101)
+#define IOCTL_HID_SET_POLL_FREQUENCY_MSEC     HID_BUFFER_CTL_CODE(103)
+
+#define IOCTL_HID_GET_DRIVER_CONFIG           HID_BUFFER_CTL_CODE(100)
+#define IOCTL_HID_SET_DRIVER_CONFIG           HID_BUFFER_CTL_CODE(101)
+#define IOCTL_HID_GET_MS_GENRE_DESCRIPTOR     HID_OUT_CTL_CODE(121)
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* __HIDCLASS_H */