(2006-08-06) rescue-bootcd

extra/linux-2.6.10/drivers/input/misc/Kconfig

@@ -0,0 +1,52 @@
+#
+# Input misc drivers configuration
+#
+config INPUT_MISC
+	bool "Misc"
+	depends on INPUT
+	help
+
+	  Say Y here, and a list of miscellaneous input drivers will be displayed.
+	  Everything that didn't fit into the other categories is here. This option
+	  doesn't affect the kernel.
+
+	  If unsure, say Y.
+
+config INPUT_PCSPKR
+	tristate "PC Speaker support"
+	depends on (ALPHA || X86 || X86_64 || MIPS || PPC_PREP || PPC_CHRP || PPC_PSERIES) && INPUT && INPUT_MISC
+	help
+	  Say Y here if you want the standard PC Speaker to be used for
+	  bells and whistles.
+
+	  If unsure, say Y.
+
+	  To compile this driver as a module, choose M here: the
+	  module will be called pcspkr.
+
+config INPUT_SPARCSPKR
+	tristate "SPARC Speaker support"
+	depends on (SPARC32 || SPARC64) && INPUT && INPUT_MISC && PCI
+	help
+	  Say Y here if you want the standard Speaker on Sparc PCI systems
+	  to be used for bells and whistles.
+
+	  If unsure, say Y.
+
+	  To compile this driver as a module, choose M here: the
+	  module will be called sparcspkr.
+
+config INPUT_M68K_BEEP
+	tristate "M68k Beeper support"
+	depends on M68K && INPUT && INPUT_MISC
+
+config INPUT_UINPUT
+	tristate "User level driver support"
+	depends on INPUT && INPUT_MISC
+	help
+	  Say Y here if you want to support user level drivers for input
+	  subsystem accessible under char device 10:223 - /dev/input/uinput.
+
+	  To compile this driver as a module, choose M here: the
+	  module will be called uinput.
+

extra/linux-2.6.10/drivers/input/misc/Makefile

@@ -0,0 +1,11 @@
+#
+# Makefile for the input misc drivers.
+#
+
+# Each configuration option enables a list of files.
+
+obj-$(CONFIG_INPUT_SPARCSPKR)		+= sparcspkr.o
+obj-$(CONFIG_INPUT_PCSPKR)		+= pcspkr.o
+obj-$(CONFIG_INPUT_M68K_BEEP)		+= m68kspkr.o
+obj-$(CONFIG_INPUT_98SPKR)		+= 98spkr.o
+obj-$(CONFIG_INPUT_UINPUT)		+= uinput.o

extra/linux-2.6.10/drivers/input/misc/m68kspkr.c

@@ -0,0 +1,83 @@
+/*
+ *  m68k beeper driver for Linux
+ *
+ *  Copyright (c) 2002 Richard Zidlicky
+ *  Copyright (c) 2002 Vojtech Pavlik
+ *  Copyright (c) 1992 Orest Zborowski
+ *
+ */
+
+/*
+ * 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/kernel.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/input.h>
+#include <asm/machdep.h>
+#include <asm/io.h>
+
+MODULE_AUTHOR("Richard Zidlicky <rz@linux-m68k.org>");
+MODULE_DESCRIPTION("m68k beeper driver");
+MODULE_LICENSE("GPL");
+
+static char m68kspkr_name[] = "m68k beeper";
+static char m68kspkr_phys[] = "m68k/generic";
+static struct input_dev m68kspkr_dev;
+
+static int m68kspkr_event(struct input_dev *dev, unsigned int type, unsigned int code, int value)
+{
+	unsigned int count = 0;
+
+	if (type != EV_SND)
+		return -1;
+
+	switch (code) {
+		case SND_BELL: if (value) value = 1000;
+		case SND_TONE: break;
+		default: return -1;
+	}
+
+	if (value > 20 && value < 32767)
+		count = 1193182 / value;
+
+	mach_beep(count, -1);
+
+	return 0;
+}
+
+static int __init m68kspkr_init(void)
+{
+        if (!mach_beep){
+		printk("%s: no lowlevel beep support\n", m68kspkr_name);
+		return -1;
+        }
+
+	m68kspkr_dev.evbit[0] = BIT(EV_SND);
+	m68kspkr_dev.sndbit[0] = BIT(SND_BELL) | BIT(SND_TONE);
+	m68kspkr_dev.event = m68kspkr_event;
+
+	m68kspkr_dev.name = m68kspkr_name;
+	m68kspkr_dev.phys = m68kspkr_phys;
+	m68kspkr_dev.id.bustype = BUS_HOST;
+	m68kspkr_dev.id.vendor = 0x001f;
+	m68kspkr_dev.id.product = 0x0001;
+	m68kspkr_dev.id.version = 0x0100;
+
+	input_register_device(&m68kspkr_dev);
+
+        printk(KERN_INFO "input: %s\n", m68kspkr_name);
+
+	return 0;
+}
+
+static void __exit m68kspkr_exit(void)
+{
+        input_unregister_device(&m68kspkr_dev);
+}
+
+module_init(m68kspkr_init);
+module_exit(m68kspkr_exit);

extra/linux-2.6.10/drivers/input/misc/pcspkr.c

@@ -0,0 +1,95 @@
+/*
+ *  PC Speaker beeper driver for Linux
+ *
+ *  Copyright (c) 2002 Vojtech Pavlik
+ *  Copyright (c) 1992 Orest Zborowski
+ *
+ */
+
+/*
+ * 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/kernel.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/input.h>
+#include <asm/8253pit.h>
+#include <asm/io.h>
+
+MODULE_AUTHOR("Vojtech Pavlik <vojtech@ucw.cz>");
+MODULE_DESCRIPTION("PC Speaker beeper driver");
+MODULE_LICENSE("GPL");
+
+static char pcspkr_name[] = "PC Speaker";
+static char pcspkr_phys[] = "isa0061/input0";
+static struct input_dev pcspkr_dev;
+
+spinlock_t i8253_beep_lock = SPIN_LOCK_UNLOCKED;
+
+static int pcspkr_event(struct input_dev *dev, unsigned int type, unsigned int code, int value)
+{
+	unsigned int count = 0;
+	unsigned long flags;
+
+	if (type != EV_SND)
+		return -1;
+
+	switch (code) {
+		case SND_BELL: if (value) value = 1000;
+		case SND_TONE: break;
+		default: return -1;
+	}
+
+	if (value > 20 && value < 32767)
+		count = PIT_TICK_RATE / value;
+
+	spin_lock_irqsave(&i8253_beep_lock, flags);
+
+	if (count) {
+		/* enable counter 2 */
+		outb_p(inb_p(0x61) | 3, 0x61);
+		/* set command for counter 2, 2 byte write */
+		outb_p(0xB6, 0x43);
+		/* select desired HZ */
+		outb_p(count & 0xff, 0x42);
+		outb((count >> 8) & 0xff, 0x42);
+	} else {
+		/* disable counter 2 */
+		outb(inb_p(0x61) & 0xFC, 0x61);
+	}
+
+	spin_unlock_irqrestore(&i8253_beep_lock, flags);
+
+	return 0;
+}
+
+static int __init pcspkr_init(void)
+{
+	pcspkr_dev.evbit[0] = BIT(EV_SND);
+	pcspkr_dev.sndbit[0] = BIT(SND_BELL) | BIT(SND_TONE);
+	pcspkr_dev.event = pcspkr_event;
+
+	pcspkr_dev.name = pcspkr_name;
+	pcspkr_dev.phys = pcspkr_phys;
+	pcspkr_dev.id.bustype = BUS_ISA;
+	pcspkr_dev.id.vendor = 0x001f;
+	pcspkr_dev.id.product = 0x0001;
+	pcspkr_dev.id.version = 0x0100;
+
+	input_register_device(&pcspkr_dev);
+
+        printk(KERN_INFO "input: %s\n", pcspkr_name);
+
+	return 0;
+}
+
+static void __exit pcspkr_exit(void)
+{
+        input_unregister_device(&pcspkr_dev);
+}
+
+module_init(pcspkr_init);
+module_exit(pcspkr_exit);

extra/linux-2.6.10/drivers/input/misc/sparcspkr.c

@@ -0,0 +1,189 @@
+/*
+ *  Driver for PC-speaker like devices found on various Sparc systems.
+ *
+ *  Copyright (c) 2002 Vojtech Pavlik
+ *  Copyright (c) 2002 David S. Miller (davem@redhat.com)
+ */
+#include <linux/config.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/input.h>
+
+#include <asm/io.h>
+#include <asm/ebus.h>
+#ifdef CONFIG_SPARC64
+#include <asm/isa.h>
+#endif
+
+MODULE_AUTHOR("David S. Miller <davem@redhat.com>");
+MODULE_DESCRIPTION("PC Speaker beeper driver");
+MODULE_LICENSE("GPL");
+
+static unsigned long beep_iobase;
+
+static char *sparcspkr_isa_name = "Sparc ISA Speaker";
+static char *sparcspkr_ebus_name = "Sparc EBUS Speaker";
+static char *sparcspkr_phys = "sparc/input0";
+static struct input_dev sparcspkr_dev;
+
+spinlock_t beep_lock = SPIN_LOCK_UNLOCKED;
+
+static void __init init_sparcspkr_struct(void)
+{
+	sparcspkr_dev.evbit[0] = BIT(EV_SND);
+	sparcspkr_dev.sndbit[0] = BIT(SND_BELL) | BIT(SND_TONE);
+
+	sparcspkr_dev.phys = sparcspkr_phys;
+	sparcspkr_dev.id.bustype = BUS_ISA;
+	sparcspkr_dev.id.vendor = 0x001f;
+	sparcspkr_dev.id.product = 0x0001;
+	sparcspkr_dev.id.version = 0x0100;
+}
+
+static int ebus_spkr_event(struct input_dev *dev, unsigned int type, unsigned int code, int value)
+{
+	unsigned int count = 0;
+	unsigned long flags;
+
+	if (type != EV_SND)
+		return -1;
+
+	switch (code) {
+		case SND_BELL: if (value) value = 1000;
+		case SND_TONE: break;
+		default: return -1;
+	}
+
+	if (value > 20 && value < 32767)
+		count = 1193182 / value;
+
+	spin_lock_irqsave(&beep_lock, flags);
+
+	/* EBUS speaker only has on/off state, the frequency does not
+	 * appear to be programmable.
+	 */
+	if (count) {
+		if (beep_iobase & 0x2UL)
+			outb(1, beep_iobase);
+		else
+			outl(1, beep_iobase);
+	} else {
+		if (beep_iobase & 0x2UL)
+			outb(0, beep_iobase);
+		else
+			outl(0, beep_iobase);
+	}
+
+	spin_unlock_irqrestore(&beep_lock, flags);
+
+	return 0;
+}
+
+static int __init init_ebus_beep(struct linux_ebus_device *edev)
+{
+	beep_iobase = edev->resource[0].start;
+
+	init_sparcspkr_struct();
+
+	sparcspkr_dev.name = sparcspkr_ebus_name;
+	sparcspkr_dev.event = ebus_spkr_event;
+
+	input_register_device(&sparcspkr_dev);
+
+        printk(KERN_INFO "input: %s\n", sparcspkr_ebus_name);
+	return 0;
+}
+
+#ifdef CONFIG_SPARC64
+static int isa_spkr_event(struct input_dev *dev, unsigned int type, unsigned int code, int value)
+{
+	unsigned int count = 0;
+	unsigned long flags;
+
+	if (type != EV_SND)
+		return -1;
+
+	switch (code) {
+		case SND_BELL: if (value) value = 1000;
+		case SND_TONE: break;
+		default: return -1;
+	}
+
+	if (value > 20 && value < 32767)
+		count = 1193182 / value;
+
+	spin_lock_irqsave(&beep_lock, flags);
+
+	if (count) {
+		/* enable counter 2 */
+		outb(inb(beep_iobase + 0x61) | 3, beep_iobase + 0x61);
+		/* set command for counter 2, 2 byte write */
+		outb(0xB6, beep_iobase + 0x43);
+		/* select desired HZ */
+		outb(count & 0xff, beep_iobase + 0x42);
+		outb((count >> 8) & 0xff, beep_iobase + 0x42);
+	} else {
+		/* disable counter 2 */
+		outb(inb_p(beep_iobase + 0x61) & 0xFC, beep_iobase + 0x61);
+	}
+
+	spin_unlock_irqrestore(&beep_lock, flags);
+
+	return 0;
+}
+
+static int __init init_isa_beep(struct sparc_isa_device *isa_dev)
+{
+	beep_iobase = isa_dev->resource.start;
+
+	init_sparcspkr_struct();
+
+	sparcspkr_dev.name = sparcspkr_isa_name;
+	sparcspkr_dev.event = isa_spkr_event;
+	sparcspkr_dev.id.bustype = BUS_ISA;
+
+	input_register_device(&sparcspkr_dev);
+
+        printk(KERN_INFO "input: %s\n", sparcspkr_isa_name);
+	return 0;
+}
+#endif
+
+static int __init sparcspkr_init(void)
+{
+	struct linux_ebus *ebus;
+	struct linux_ebus_device *edev = NULL;
+#ifdef CONFIG_SPARC64
+	struct sparc_isa_bridge *isa_br;
+	struct sparc_isa_device *isa_dev;
+#endif
+
+	for_each_ebus(ebus) {
+		for_each_ebusdev(edev, ebus) {
+			if (!strcmp(edev->prom_name, "beep"))
+				return init_ebus_beep(edev);
+		}
+	}
+#ifdef CONFIG_SPARC64
+	for_each_isa(isa_br) {
+		for_each_isadev(isa_dev, isa_br) {
+			/* A hack, the beep device's base lives in
+			 * the DMA isa node.
+			 */
+			if (!strcmp(isa_dev->prom_name, "dma"))
+				return init_isa_beep(isa_dev);
+		}
+	}
+#endif
+
+	return -ENODEV;
+}
+
+static void __exit sparcspkr_exit(void)
+{
+	input_unregister_device(&sparcspkr_dev);
+}
+
+module_init(sparcspkr_init);
+module_exit(sparcspkr_exit);

extra/linux-2.6.10/drivers/input/misc/uinput.c

@@ -0,0 +1,431 @@
+/*
+ *  User level driver support for input subsystem
+ *
+ * Heavily based on evdev.c by Vojtech Pavlik
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program 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 General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ *
+ * Author: Aristeu Sergio Rozanski Filho <aris@cathedrallabs.org>
+ *
+ * Changes/Revisions:
+ *	0.1	20/06/2002
+ *		- first public version
+ */
+#include <linux/poll.h>
+#include <linux/slab.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/input.h>
+#include <linux/smp_lock.h>
+#include <linux/fs.h>
+#include <linux/miscdevice.h>
+#include <linux/uinput.h>
+
+static int uinput_dev_open(struct input_dev *dev)
+{
+	return 0;
+}
+
+static void uinput_dev_close(struct input_dev *dev)
+{
+
+}
+
+static int uinput_dev_event(struct input_dev *dev, unsigned int type, unsigned int code, int value)
+{
+	struct uinput_device	*udev;
+
+	udev = (struct uinput_device *)dev->private;
+
+	udev->buff[udev->head].type = type;
+	udev->buff[udev->head].code = code;
+	udev->buff[udev->head].value = value;
+	do_gettimeofday(&udev->buff[udev->head].time);
+	udev->head = (udev->head + 1) % UINPUT_BUFFER_SIZE;
+
+	wake_up_interruptible(&udev->waitq);
+
+	return 0;
+}
+
+static int uinput_dev_upload_effect(struct input_dev *dev, struct ff_effect *effect)
+{
+	return 0;
+}
+
+static int uinput_dev_erase_effect(struct input_dev *dev, int effect_id)
+{
+	return 0;
+}
+
+static int uinput_create_device(struct uinput_device *udev)
+{
+	if (!udev->dev->name) {
+		printk(KERN_DEBUG "%s: write device info first\n", UINPUT_NAME);
+		return -EINVAL;
+	}
+
+	udev->dev->open = uinput_dev_open;
+	udev->dev->close = uinput_dev_close;
+	udev->dev->event = uinput_dev_event;
+	udev->dev->upload_effect = uinput_dev_upload_effect;
+	udev->dev->erase_effect = uinput_dev_erase_effect;
+	udev->dev->private = udev;
+
+	init_waitqueue_head(&(udev->waitq));
+
+	input_register_device(udev->dev);
+
+	set_bit(UIST_CREATED, &(udev->state));
+
+	return 0;
+}
+
+static int uinput_destroy_device(struct uinput_device *udev)
+{
+	if (!test_bit(UIST_CREATED, &(udev->state))) {
+		printk(KERN_WARNING "%s: create the device first\n", UINPUT_NAME);
+		return -EINVAL;
+	}
+
+	input_unregister_device(udev->dev);
+
+	clear_bit(UIST_CREATED, &(udev->state));
+
+	return 0;
+}
+
+static int uinput_open(struct inode *inode, struct file *file)
+{
+	struct uinput_device	*newdev;
+	struct input_dev	*newinput;
+
+	newdev = kmalloc(sizeof(struct uinput_device), GFP_KERNEL);
+	if (!newdev)
+		goto error;
+	memset(newdev, 0, sizeof(struct uinput_device));
+
+	newinput = kmalloc(sizeof(struct input_dev), GFP_KERNEL);
+	if (!newinput)
+		goto cleanup;
+	memset(newinput, 0, sizeof(struct input_dev));
+
+	newdev->dev = newinput;
+
+	file->private_data = newdev;
+
+	return 0;
+cleanup:
+	kfree(newdev);
+error:
+	return -ENOMEM;
+}
+
+static int uinput_validate_absbits(struct input_dev *dev)
+{
+	unsigned int cnt;
+	int retval = 0;
+
+	for (cnt = 0; cnt < ABS_MAX; cnt++) {
+		if (!test_bit(cnt, dev->absbit))
+			continue;
+
+		if (/*!dev->absmin[cnt] || !dev->absmax[cnt] || */
+		    (dev->absmax[cnt] <= dev->absmin[cnt])) {
+			printk(KERN_DEBUG
+				"%s: invalid abs[%02x] min:%d max:%d\n",
+				UINPUT_NAME, cnt,
+				dev->absmin[cnt], dev->absmax[cnt]);
+			retval = -EINVAL;
+			break;
+		}
+
+		if ((dev->absflat[cnt] < dev->absmin[cnt]) ||
+		    (dev->absflat[cnt] > dev->absmax[cnt])) {
+			printk(KERN_DEBUG
+				"%s: absflat[%02x] out of range: %d "
+				"(min:%d/max:%d)\n",
+				UINPUT_NAME, cnt, dev->absflat[cnt],
+				dev->absmin[cnt], dev->absmax[cnt]);
+			retval = -EINVAL;
+			break;
+		}
+	}
+	return retval;
+}
+
+static int uinput_alloc_device(struct file *file, const char __user *buffer, size_t count)
+{
+	struct uinput_user_dev	*user_dev;
+	struct input_dev	*dev;
+	struct uinput_device	*udev;
+	int			size,
+				retval;
+
+	retval = count;
+
+	udev = (struct uinput_device *)file->private_data;
+	dev = udev->dev;
+
+	user_dev = kmalloc(sizeof(*user_dev), GFP_KERNEL);
+	if (!user_dev) {
+		retval = -ENOMEM;
+		goto exit;
+	}
+
+	if (copy_from_user(user_dev, buffer, sizeof(struct uinput_user_dev))) {
+		retval = -EFAULT;
+		goto exit;
+	}
+
+	if (NULL != dev->name)
+		kfree(dev->name);
+
+	size = strnlen(user_dev->name, UINPUT_MAX_NAME_SIZE) + 1;
+	dev->name = kmalloc(size, GFP_KERNEL);
+	if (!dev->name) {
+		retval = -ENOMEM;
+		goto exit;
+	}
+
+	strlcpy(dev->name, user_dev->name, size);
+	dev->id.bustype	= user_dev->id.bustype;
+	dev->id.vendor	= user_dev->id.vendor;
+	dev->id.product	= user_dev->id.product;
+	dev->id.version	= user_dev->id.version;
+	dev->ff_effects_max = user_dev->ff_effects_max;
+
+	size = sizeof(int) * (ABS_MAX + 1);
+	memcpy(dev->absmax, user_dev->absmax, size);
+	memcpy(dev->absmin, user_dev->absmin, size);
+	memcpy(dev->absfuzz, user_dev->absfuzz, size);
+	memcpy(dev->absflat, user_dev->absflat, size);
+
+	/* check if absmin/absmax/absfuzz/absflat are filled as
+	 * told in Documentation/input/input-programming.txt */
+	if (test_bit(EV_ABS, dev->evbit)) {
+		retval = uinput_validate_absbits(dev);
+		if (retval < 0)
+			kfree(dev->name);
+	}
+
+exit:
+	kfree(user_dev);
+	return retval;
+}
+
+static ssize_t uinput_write(struct file *file, const char __user *buffer, size_t count, loff_t *ppos)
+{
+	struct uinput_device	*udev = file->private_data;
+
+	if (test_bit(UIST_CREATED, &(udev->state))) {
+		struct input_event	ev;
+
+		if (copy_from_user(&ev, buffer, sizeof(struct input_event)))
+			return -EFAULT;
+		input_event(udev->dev, ev.type, ev.code, ev.value);
+	}
+	else
+		count = uinput_alloc_device(file, buffer, count);
+
+	return count;
+}
+
+static ssize_t uinput_read(struct file *file, char __user *buffer, size_t count, loff_t *ppos)
+{
+	struct uinput_device *udev = file->private_data;
+	int retval = 0;
+
+	if (!test_bit(UIST_CREATED, &(udev->state)))
+		return -ENODEV;
+
+	if ((udev->head == udev->tail) && (file->f_flags & O_NONBLOCK))
+		return -EAGAIN;
+
+	retval = wait_event_interruptible(udev->waitq,
+			(udev->head != udev->tail) ||
+			!test_bit(UIST_CREATED, &(udev->state)));
+
+	if (retval)
+		return retval;
+
+	if (!test_bit(UIST_CREATED, &(udev->state)))
+		return -ENODEV;
+
+	while ((udev->head != udev->tail) &&
+	    (retval + sizeof(struct input_event) <= count)) {
+		if (copy_to_user(buffer + retval, &(udev->buff[udev->tail]),
+		    sizeof(struct input_event))) return -EFAULT;
+		udev->tail = (udev->tail + 1) % UINPUT_BUFFER_SIZE;
+		retval += sizeof(struct input_event);
+	}
+
+	return retval;
+}
+
+static unsigned int uinput_poll(struct file *file, poll_table *wait)
+{
+	struct uinput_device *udev = file->private_data;
+
+	if (!test_bit(UIST_CREATED, &(udev->state)))
+		return 0;
+
+	poll_wait(file, &udev->waitq, wait);
+
+	if (udev->head != udev->tail)
+		return POLLIN | POLLRDNORM;
+
+	return 0;
+}
+
+static int uinput_burn_device(struct uinput_device *udev)
+{
+	if (test_bit(UIST_CREATED, &(udev->state)))
+		uinput_destroy_device(udev);
+
+	kfree(udev->dev);
+	kfree(udev);
+
+	return 0;
+}
+
+static int uinput_close(struct inode *inode, struct file *file)
+{
+	return uinput_burn_device((struct uinput_device *)file->private_data);
+}
+
+static int uinput_ioctl(struct inode *inode, struct file *file, unsigned int cmd, unsigned long arg)
+{
+	int			retval = 0;
+	struct uinput_device	*udev;
+
+	udev = (struct uinput_device *)file->private_data;
+
+	/* device attributes can not be changed after the device is created */
+	if (cmd >= UI_SET_EVBIT && test_bit(UIST_CREATED, &(udev->state)))
+		return -EINVAL;
+
+	switch (cmd) {
+		case UI_DEV_CREATE:
+			retval = uinput_create_device(udev);
+			break;
+
+		case UI_DEV_DESTROY:
+			retval = uinput_destroy_device(udev);
+			break;
+
+		case UI_SET_EVBIT:
+			if (arg > EV_MAX) {
+				retval = -EINVAL;
+				break;
+			}
+			set_bit(arg, udev->dev->evbit);
+			break;
+
+		case UI_SET_KEYBIT:
+			if (arg > KEY_MAX) {
+				retval = -EINVAL;
+				break;
+			}
+			set_bit(arg, udev->dev->keybit);
+			break;
+
+		case UI_SET_RELBIT:
+			if (arg > REL_MAX) {
+				retval = -EINVAL;
+				break;
+			}
+			set_bit(arg, udev->dev->relbit);
+			break;
+
+		case UI_SET_ABSBIT:
+			if (arg > ABS_MAX) {
+				retval = -EINVAL;
+				break;
+			}
+			set_bit(arg, udev->dev->absbit);
+			break;
+
+		case UI_SET_MSCBIT:
+			if (arg > MSC_MAX) {
+				retval = -EINVAL;
+				break;
+			}
+			set_bit(arg, udev->dev->mscbit);
+			break;
+
+		case UI_SET_LEDBIT:
+			if (arg > LED_MAX) {
+				retval = -EINVAL;
+				break;
+			}
+			set_bit(arg, udev->dev->ledbit);
+			break;
+
+		case UI_SET_SNDBIT:
+			if (arg > SND_MAX) {
+				retval = -EINVAL;
+				break;
+			}
+			set_bit(arg, udev->dev->sndbit);
+			break;
+
+		case UI_SET_FFBIT:
+			if (arg > FF_MAX) {
+				retval = -EINVAL;
+				break;
+			}
+			set_bit(arg, udev->dev->ffbit);
+			break;
+
+		default:
+			retval = -EFAULT;
+	}
+	return retval;
+}
+
+struct file_operations uinput_fops = {
+	.owner =	THIS_MODULE,
+	.open =		uinput_open,
+	.release =	uinput_close,
+	.read =		uinput_read,
+	.write =	uinput_write,
+	.poll =		uinput_poll,
+	.ioctl =	uinput_ioctl,
+};
+
+static struct miscdevice uinput_misc = {
+	.fops =		&uinput_fops,
+	.minor =	UINPUT_MINOR,
+	.name =		UINPUT_NAME,
+};
+
+static int __init uinput_init(void)
+{
+	return misc_register(&uinput_misc);
+}
+
+static void __exit uinput_exit(void)
+{
+	misc_deregister(&uinput_misc);
+}
+
+MODULE_AUTHOR("Aristeu Sergio Rozanski Filho");
+MODULE_DESCRIPTION("User level driver support for input subsystem");
+MODULE_LICENSE("GPL");
+
+module_init(uinput_init);
+module_exit(uinput_exit);
+