diff --git a/src/add-ons/kernel/drivers/arch/x86/ps2mouse/ps2mouse.h b/src/add-ons/kernel/drivers/arch/x86/ps2mouse/ps2mouse.h
new file mode 100644
index 0000000000..be83fd9126
--- /dev/null
+++ b/src/add-ons/kernel/drivers/arch/x86/ps2mouse/ps2mouse.h
@@ -0,0 +1,106 @@
+/*
+ * ps2mouse.c:
+ * PS/2 mouse device driver for NewOS and OpenBeOS.
+ * Author:     Elad Lahav (elad@eldarshany.com)
+ * Created:    21.12.2001
+ * Modified:   11.1.2002
+ */
+
+/*
+ * A PS/2 mouse is connected to the IBM 8042 controller, and gets its
+ * name from the IBM PS/2 personal computer, which was the first to
+ * use this device. All resources are shared between the keyboard, and
+ * the mouse, referred to as the "Auxiliary Device".
+ * I/O:
+ * ~~~
+ * The controller has 3 I/O registers:
+ * 1. Status (input), mapped to port 64h
+ * 2. Control (output), mapped to port 64h
+ * 3. Data (input/output), mapped to port 60h
+ * Data:
+ * ~~~~
+ * Since a mouse is an input only device, data can only be read, and
+ * not written. A packet read from the mouse data port is composed of
+ * three bytes:
+ * byte 0: status byte, where
+ * - bit 0: Y overflow (1 = true)
+ * - bit 1: X overflow (1 = true)
+ * - bit 2: MSB of Y offset
+ * - bit 3: MSB of X offset
+ * - bit 4: Syncronization bit (always 1)
+ * - bit 5: Middle button (1 = down)
+ * - bit 6: Right button (1 = down)
+ * - bit 7: Left button (1 = down)
+ * byte 1: X position change, since last probed (-127 to +127)
+ * byte 2: Y position change, since last probed (-127 to +127)
+ * Interrupts:
+ * ~~~~~~~~~~
+ * The PS/2 mouse device is connected to interrupt 12, which means that
+ * it uses the second interrupt controller (handles INT8 to INT15). In
+ * order for this interrupt to be enabled, both the 5th interrupt of
+ * the second controller AND the 3rd interrupt of the first controller
+ * (cascade mode) should be unmasked.
+ * The controller uses 3 consecutive interrupts to inform the computer
+ * that it has new data. On the first the data register holds the status
+ * byte, on the second the X offset, and on the 3rd the Y offset.
+ */
+
+#ifndef _KERNEL_ARCH_x86_PS2MOUSE_H
+#define _KERNEL_ARCH_x86_PS2MOUSE_H
+
+#include <kernel.h>
+#include <memheap.h>
+#include <int.h>
+#include <debug.h>
+#include <devfs.h>
+#include <arch/int.h>
+#include <OS.h>
+#include <string.h>
+
+/////////////////////////////////////////////////////////////////////////
+// definitions
+
+// I/O addresses
+#define PS2_PORT_DATA            0x60
+#define PS2_PORT_CTRL            0x64
+
+// control words
+#define PS2_CTRL_WRITE_CMD       0x60
+#define PS2_CTRL_WRITE_AUX       0xD4
+
+// data words
+#define PS2_CMD_DEV_INIT         0x43
+#define PS2_CMD_ENABLE_MOUSE     0xF4
+#define PS2_CMD_DISABLE_MOUSE    0xF5
+#define PS2_CMD_RESET_MOUSE      0xFF
+
+#define PS2_RES_ACK              0xFA
+#define PS2_RES_RESEND           0xFE
+
+// interrupts
+#define INT_BASE                 0x20
+#define INT_PS2_MOUSE            0x0C
+#define INT_CASCADE              0x02
+
+#define PACKET_SIZE              3
+
+/*
+ * mouse_data:
+ * Holds the data read from the PS/2 auxiliary device.
+ */
+typedef struct {
+	char status;
+	char delta_x;
+	char delta_y;
+} mouse_data; // mouse_data
+
+#ifdef _PS2MOUSE_
+  static mouse_data md_int;
+  static mouse_data md_read;
+  static sem_id     mouse_sem;
+  static bool       in_read;
+#endif
+
+int mouse_dev_init(kernel_args *ka);
+
+#endif /* _KERNEL_ARCH_x86_PS2MOUSE_H */