Index: linux-2.6.22-source/drivers/input/serio/cokbd.c
===================================================================
--- /dev/null
+++ linux-2.6.22-source/drivers/input/serio/cokbd.c
@@ -0,0 +1,133 @@
+/*
+ *  Cooperative Linux virtual keyboard controller driver
+ *
+ *  Copyright (c) 1999-2002 Dan Aloni <da-x@colinux.org)
+ *    Based on 98kbd-io.c written by Osamu Tomita>
+ */
+
+/*
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published by
+ * the Free Software Foundation.
+ */
+
+#include <linux/delay.h>
+#include <linux/module.h>
+#include <linux/interrupt.h>
+#include <linux/ioport.h>
+#include <linux/init.h>
+#include <linux/serio.h>
+#include <linux/sched.h>
+#include <linux/kbd_kern.h>
+#include <linux/cooperative_internal.h>
+
+#include <asm/io.h>
+
+MODULE_AUTHOR("Dan Aloni <da-x@colinux.org>");
+MODULE_DESCRIPTION("Cooperative Linux virtual keyboard controller driver");
+MODULE_LICENSE("GPL");
+
+/*
+ * Names.
+ */
+
+#define COKBD_PHYS_DESC        "cokbd"
+
+static struct serio cokbd_port;
+
+static irqreturn_t cokbdio_interrupt(int irq, void *dev_id);
+
+/*
+ * cokbd_write() sends a byte out through the keyboard interface.
+ */
+
+#define ATKBD_CMD_GETID		0x02f2
+
+static int cokbd_write(struct serio *port, unsigned char c)
+{
+	return 0;
+}
+
+/*
+ * cokbd_open() is called when a port is open by the higher layer.
+ * It allocates the interrupt and enables in in the chip.
+ */
+
+static int cokbd_open(struct serio *port)
+{
+	if (request_irq(KEYBOARD_IRQ, cokbdio_interrupt, 0, "cokbd", NULL)) {
+		printk(KERN_ERR "cobkd.c: Can't get irq %d for %s, unregistering the port.\n", KEYBOARD_IRQ, "KBD");
+		serio_unregister_port(port);
+		return -1;
+	}
+
+	return 0;
+}
+
+static void cokbd_close(struct serio *port)
+{
+	printk(KERN_INFO "cokbd closed\n");
+
+	free_irq(KEYBOARD_IRQ, NULL);
+}
+
+/*
+ * Structures for registering the devices in the serio.c module.
+ */
+
+static struct serio cokbd_port =
+{
+	.id.type =	SERIO_8042_XL,
+	.write =	cokbd_write,
+	.open =		cokbd_open,
+	.close =	cokbd_close,
+	.name =		"cokbd port",
+	.phys =		COKBD_PHYS_DESC,
+};
+
+/*
+ * cokbdio_interrupt() is the most important function in this driver -
+ * it handles the interrupts from keyboard, and sends incoming bytes
+ * to the upper layers.
+ */
+
+static irqreturn_t cokbdio_interrupt(int irq, void *dev_id)
+{
+	co_message_node_t *node_message;
+	while (co_get_message(&node_message, CO_DEVICE_KEYBOARD)) {
+		co_linux_message_t *message = (co_linux_message_t *)&node_message->msg.data;
+		co_scan_code_t *sc = (co_scan_code_t *)message->data;
+		unsigned long scancode = sc->code;
+
+		switch (sc->mode)
+		{
+		    case CO_KBD_SCANCODE_RAW:
+			serio_interrupt(&cokbd_port, scancode, 0);
+			break;
+
+		    case CO_KBD_SCANCODE_ASCII:
+			keyboard_inject_utf8(scancode);
+			break;
+		}
+		co_free_message(node_message);
+	}
+
+	return IRQ_HANDLED;
+}
+
+int __init cokbdio_init(void)
+{
+	serio_register_port(&cokbd_port);
+
+	printk(KERN_INFO "serio: cokbd at irq %d\n", KEYBOARD_IRQ);
+
+	return 0;
+}
+
+void __exit cokbdio_exit(void)
+{
+	serio_unregister_port(&cokbd_port);
+}
+
+module_init(cokbdio_init);
+module_exit(cokbdio_exit);