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-rw-r--r--drivers/char/watchdog/wdt_pci.c756
1 files changed, 0 insertions, 756 deletions
diff --git a/drivers/char/watchdog/wdt_pci.c b/drivers/char/watchdog/wdt_pci.c
deleted file mode 100644
index 6baf4ae..0000000
--- a/drivers/char/watchdog/wdt_pci.c
+++ /dev/null
@@ -1,756 +0,0 @@
-/*
- * Industrial Computer Source PCI-WDT500/501 driver
- *
- * (c) Copyright 1996-1997 Alan Cox <alan@redhat.com>, All Rights Reserved.
- * http://www.redhat.com
- *
- * 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.
- *
- * Neither Alan Cox nor CymruNet Ltd. admit liability nor provide
- * warranty for any of this software. This material is provided
- * "AS-IS" and at no charge.
- *
- * (c) Copyright 1995 Alan Cox <alan@lxorguk.ukuu.org.uk>
- *
- * Release 0.10.
- *
- * Fixes
- * Dave Gregorich : Modularisation and minor bugs
- * Alan Cox : Added the watchdog ioctl() stuff
- * Alan Cox : Fixed the reboot problem (as noted by
- * Matt Crocker).
- * Alan Cox : Added wdt= boot option
- * Alan Cox : Cleaned up copy/user stuff
- * Tim Hockin : Added insmod parameters, comment cleanup
- * Parameterized timeout
- * JP Nollmann : Added support for PCI wdt501p
- * Alan Cox : Split ISA and PCI cards into two drivers
- * Jeff Garzik : PCI cleanups
- * Tigran Aivazian : Restructured wdtpci_init_one() to handle failures
- * Joel Becker : Added WDIOC_GET/SETTIMEOUT
- * Zwane Mwaikambo : Magic char closing, locking changes, cleanups
- * Matt Domsch : nowayout module option
- */
-
-#include <linux/interrupt.h>
-#include <linux/module.h>
-#include <linux/moduleparam.h>
-#include <linux/types.h>
-#include <linux/miscdevice.h>
-#include <linux/watchdog.h>
-#include <linux/ioport.h>
-#include <linux/notifier.h>
-#include <linux/reboot.h>
-#include <linux/init.h>
-#include <linux/fs.h>
-#include <linux/pci.h>
-
-#include <asm/io.h>
-#include <asm/uaccess.h>
-#include <asm/system.h>
-
-#define WDT_IS_PCI
-#include "wd501p.h"
-
-#define PFX "wdt_pci: "
-
-/*
- * Until Access I/O gets their application for a PCI vendor ID approved,
- * I don't think that it's appropriate to move these constants into the
- * regular pci_ids.h file. -- JPN 2000/01/18
- */
-
-#ifndef PCI_VENDOR_ID_ACCESSIO
-#define PCI_VENDOR_ID_ACCESSIO 0x494f
-#endif
-#ifndef PCI_DEVICE_ID_WDG_CSM
-#define PCI_DEVICE_ID_WDG_CSM 0x22c0
-#endif
-
-/* We can only use 1 card due to the /dev/watchdog restriction */
-static int dev_count;
-
-static struct semaphore open_sem;
-static spinlock_t wdtpci_lock;
-static char expect_close;
-
-static int io;
-static int irq;
-
-/* Default timeout */
-#define WD_TIMO 60 /* Default heartbeat = 60 seconds */
-
-static int heartbeat = WD_TIMO;
-static int wd_heartbeat;
-module_param(heartbeat, int, 0);
-MODULE_PARM_DESC(heartbeat, "Watchdog heartbeat in seconds. (0<heartbeat<65536, default=" __MODULE_STRING(WD_TIMO) ")");
-
-static int nowayout = WATCHDOG_NOWAYOUT;
-module_param(nowayout, int, 0);
-MODULE_PARM_DESC(nowayout, "Watchdog cannot be stopped once started (default=" __MODULE_STRING(WATCHDOG_NOWAYOUT) ")");
-
-#ifdef CONFIG_WDT_501_PCI
-/* Support for the Fan Tachometer on the PCI-WDT501 */
-static int tachometer;
-
-module_param(tachometer, int, 0);
-MODULE_PARM_DESC(tachometer, "PCI-WDT501 Fan Tachometer support (0=disable, default=0)");
-#endif /* CONFIG_WDT_501_PCI */
-
-/*
- * Programming support
- */
-
-static void wdtpci_ctr_mode(int ctr, int mode)
-{
- ctr<<=6;
- ctr|=0x30;
- ctr|=(mode<<1);
- outb_p(ctr, WDT_CR);
-}
-
-static void wdtpci_ctr_load(int ctr, int val)
-{
- outb_p(val&0xFF, WDT_COUNT0+ctr);
- outb_p(val>>8, WDT_COUNT0+ctr);
-}
-
-/**
- * wdtpci_start:
- *
- * Start the watchdog driver.
- */
-
-static int wdtpci_start(void)
-{
- unsigned long flags;
-
- spin_lock_irqsave(&wdtpci_lock, flags);
-
- /*
- * "pet" the watchdog, as Access says.
- * This resets the clock outputs.
- */
- inb_p(WDT_DC); /* Disable watchdog */
- wdtpci_ctr_mode(2,0); /* Program CTR2 for Mode 0: Pulse on Terminal Count */
- outb_p(0, WDT_DC); /* Enable watchdog */
-
- inb_p(WDT_DC); /* Disable watchdog */
- outb_p(0, WDT_CLOCK); /* 2.0833MHz clock */
- inb_p(WDT_BUZZER); /* disable */
- inb_p(WDT_OPTONOTRST); /* disable */
- inb_p(WDT_OPTORST); /* disable */
- inb_p(WDT_PROGOUT); /* disable */
- wdtpci_ctr_mode(0,3); /* Program CTR0 for Mode 3: Square Wave Generator */
- wdtpci_ctr_mode(1,2); /* Program CTR1 for Mode 2: Rate Generator */
- wdtpci_ctr_mode(2,1); /* Program CTR2 for Mode 1: Retriggerable One-Shot */
- wdtpci_ctr_load(0,20833); /* count at 100Hz */
- wdtpci_ctr_load(1,wd_heartbeat);/* Heartbeat */
- /* DO NOT LOAD CTR2 on PCI card! -- JPN */
- outb_p(0, WDT_DC); /* Enable watchdog */
-
- spin_unlock_irqrestore(&wdtpci_lock, flags);
- return 0;
-}
-
-/**
- * wdtpci_stop:
- *
- * Stop the watchdog driver.
- */
-
-static int wdtpci_stop (void)
-{
- unsigned long flags;
-
- /* Turn the card off */
- spin_lock_irqsave(&wdtpci_lock, flags);
- inb_p(WDT_DC); /* Disable watchdog */
- wdtpci_ctr_load(2,0); /* 0 length reset pulses now */
- spin_unlock_irqrestore(&wdtpci_lock, flags);
- return 0;
-}
-
-/**
- * wdtpci_ping:
- *
- * Reload counter one with the watchdog heartbeat. We don't bother reloading
- * the cascade counter.
- */
-
-static int wdtpci_ping(void)
-{
- unsigned long flags;
-
- /* Write a watchdog value */
- spin_lock_irqsave(&wdtpci_lock, flags);
- inb_p(WDT_DC); /* Disable watchdog */
- wdtpci_ctr_mode(1,2); /* Re-Program CTR1 for Mode 2: Rate Generator */
- wdtpci_ctr_load(1,wd_heartbeat);/* Heartbeat */
- outb_p(0, WDT_DC); /* Enable watchdog */
- spin_unlock_irqrestore(&wdtpci_lock, flags);
- return 0;
-}
-
-/**
- * wdtpci_set_heartbeat:
- * @t: the new heartbeat value that needs to be set.
- *
- * Set a new heartbeat value for the watchdog device. If the heartbeat value is
- * incorrect we keep the old value and return -EINVAL. If successfull we
- * return 0.
- */
-static int wdtpci_set_heartbeat(int t)
-{
- /* Arbitrary, can't find the card's limits */
- if ((t < 1) || (t > 65535))
- return -EINVAL;
-
- heartbeat = t;
- wd_heartbeat = t * 100;
- return 0;
-}
-
-/**
- * wdtpci_get_status:
- * @status: the new status.
- *
- * Extract the status information from a WDT watchdog device. There are
- * several board variants so we have to know which bits are valid. Some
- * bits default to one and some to zero in order to be maximally painful.
- *
- * we then map the bits onto the status ioctl flags.
- */
-
-static int wdtpci_get_status(int *status)
-{
- unsigned char new_status=inb_p(WDT_SR);
-
- *status=0;
- if (new_status & WDC_SR_ISOI0)
- *status |= WDIOF_EXTERN1;
- if (new_status & WDC_SR_ISII1)
- *status |= WDIOF_EXTERN2;
-#ifdef CONFIG_WDT_501_PCI
- if (!(new_status & WDC_SR_TGOOD))
- *status |= WDIOF_OVERHEAT;
- if (!(new_status & WDC_SR_PSUOVER))
- *status |= WDIOF_POWEROVER;
- if (!(new_status & WDC_SR_PSUUNDR))
- *status |= WDIOF_POWERUNDER;
- if (tachometer) {
- if (!(new_status & WDC_SR_FANGOOD))
- *status |= WDIOF_FANFAULT;
- }
-#endif /* CONFIG_WDT_501_PCI */
- return 0;
-}
-
-#ifdef CONFIG_WDT_501_PCI
-/**
- * wdtpci_get_temperature:
- *
- * Reports the temperature in degrees Fahrenheit. The API is in
- * farenheit. It was designed by an imperial measurement luddite.
- */
-
-static int wdtpci_get_temperature(int *temperature)
-{
- unsigned short c=inb_p(WDT_RT);
-
- *temperature = (c * 11 / 15) + 7;
- return 0;
-}
-#endif /* CONFIG_WDT_501_PCI */
-
-/**
- * wdtpci_interrupt:
- * @irq: Interrupt number
- * @dev_id: Unused as we don't allow multiple devices.
- *
- * Handle an interrupt from the board. These are raised when the status
- * map changes in what the board considers an interesting way. That means
- * a failure condition occurring.
- */
-
-static irqreturn_t wdtpci_interrupt(int irq, void *dev_id)
-{
- /*
- * Read the status register see what is up and
- * then printk it.
- */
- unsigned char status=inb_p(WDT_SR);
-
- printk(KERN_CRIT PFX "status %d\n", status);
-
-#ifdef CONFIG_WDT_501_PCI
- if (!(status & WDC_SR_TGOOD))
- printk(KERN_CRIT PFX "Overheat alarm.(%d)\n",inb_p(WDT_RT));
- if (!(status & WDC_SR_PSUOVER))
- printk(KERN_CRIT PFX "PSU over voltage.\n");
- if (!(status & WDC_SR_PSUUNDR))
- printk(KERN_CRIT PFX "PSU under voltage.\n");
- if (tachometer) {
- if (!(status & WDC_SR_FANGOOD))
- printk(KERN_CRIT PFX "Possible fan fault.\n");
- }
-#endif /* CONFIG_WDT_501_PCI */
- if (!(status&WDC_SR_WCCR))
-#ifdef SOFTWARE_REBOOT
-#ifdef ONLY_TESTING
- printk(KERN_CRIT PFX "Would Reboot.\n");
-#else
- printk(KERN_CRIT PFX "Initiating system reboot.\n");
- emergency_restart(NULL);
-#endif
-#else
- printk(KERN_CRIT PFX "Reset in 5ms.\n");
-#endif
- return IRQ_HANDLED;
-}
-
-
-/**
- * wdtpci_write:
- * @file: file handle to the watchdog
- * @buf: buffer to write (unused as data does not matter here
- * @count: count of bytes
- * @ppos: pointer to the position to write. No seeks allowed
- *
- * A write to a watchdog device is defined as a keepalive signal. Any
- * write of data will do, as we we don't define content meaning.
- */
-
-static ssize_t wdtpci_write(struct file *file, const char __user *buf, size_t count, loff_t *ppos)
-{
- if (count) {
- if (!nowayout) {
- size_t i;
-
- expect_close = 0;
-
- for (i = 0; i != count; i++) {
- char c;
- if(get_user(c, buf+i))
- return -EFAULT;
- if (c == 'V')
- expect_close = 42;
- }
- }
- wdtpci_ping();
- }
-
- return count;
-}
-
-/**
- * wdtpci_ioctl:
- * @inode: inode of the device
- * @file: file handle to the device
- * @cmd: watchdog command
- * @arg: argument pointer
- *
- * The watchdog API defines a common set of functions for all watchdogs
- * according to their available features. We only actually usefully support
- * querying capabilities and current status.
- */
-
-static int wdtpci_ioctl(struct inode *inode, struct file *file, unsigned int cmd,
- unsigned long arg)
-{
- int new_heartbeat;
- int status;
- void __user *argp = (void __user *)arg;
- int __user *p = argp;
-
- static struct watchdog_info ident = {
- .options = WDIOF_SETTIMEOUT|
- WDIOF_MAGICCLOSE|
- WDIOF_KEEPALIVEPING,
- .firmware_version = 1,
- .identity = "PCI-WDT500/501",
- };
-
- /* Add options according to the card we have */
- ident.options |= (WDIOF_EXTERN1|WDIOF_EXTERN2);
-#ifdef CONFIG_WDT_501_PCI
- ident.options |= (WDIOF_OVERHEAT|WDIOF_POWERUNDER|WDIOF_POWEROVER);
- if (tachometer)
- ident.options |= WDIOF_FANFAULT;
-#endif /* CONFIG_WDT_501_PCI */
-
- switch(cmd)
- {
- default:
- return -ENOTTY;
- case WDIOC_GETSUPPORT:
- return copy_to_user(argp, &ident, sizeof(ident))?-EFAULT:0;
-
- case WDIOC_GETSTATUS:
- wdtpci_get_status(&status);
- return put_user(status, p);
- case WDIOC_GETBOOTSTATUS:
- return put_user(0, p);
- case WDIOC_KEEPALIVE:
- wdtpci_ping();
- return 0;
- case WDIOC_SETTIMEOUT:
- if (get_user(new_heartbeat, p))
- return -EFAULT;
-
- if (wdtpci_set_heartbeat(new_heartbeat))
- return -EINVAL;
-
- wdtpci_ping();
- /* Fall */
- case WDIOC_GETTIMEOUT:
- return put_user(heartbeat, p);
- }
-}
-
-/**
- * wdtpci_open:
- * @inode: inode of device
- * @file: file handle to device
- *
- * The watchdog device has been opened. The watchdog device is single
- * open and on opening we load the counters. Counter zero is a 100Hz
- * cascade, into counter 1 which downcounts to reboot. When the counter
- * triggers counter 2 downcounts the length of the reset pulse which
- * set set to be as long as possible.
- */
-
-static int wdtpci_open(struct inode *inode, struct file *file)
-{
- if (down_trylock(&open_sem))
- return -EBUSY;
-
- if (nowayout) {
- __module_get(THIS_MODULE);
- }
- /*
- * Activate
- */
- wdtpci_start();
- return nonseekable_open(inode, file);
-}
-
-/**
- * wdtpci_release:
- * @inode: inode to board
- * @file: file handle to board
- *
- * The watchdog has a configurable API. There is a religious dispute
- * between people who want their watchdog to be able to shut down and
- * those who want to be sure if the watchdog manager dies the machine
- * reboots. In the former case we disable the counters, in the latter
- * case you have to open it again very soon.
- */
-
-static int wdtpci_release(struct inode *inode, struct file *file)
-{
- if (expect_close == 42) {
- wdtpci_stop();
- } else {
- printk(KERN_CRIT PFX "Unexpected close, not stopping timer!");
- wdtpci_ping();
- }
- expect_close = 0;
- up(&open_sem);
- return 0;
-}
-
-#ifdef CONFIG_WDT_501_PCI
-/**
- * wdtpci_temp_read:
- * @file: file handle to the watchdog board
- * @buf: buffer to write 1 byte into
- * @count: length of buffer
- * @ptr: offset (no seek allowed)
- *
- * Read reports the temperature in degrees Fahrenheit. The API is in
- * fahrenheit. It was designed by an imperial measurement luddite.
- */
-
-static ssize_t wdtpci_temp_read(struct file *file, char __user *buf, size_t count, loff_t *ptr)
-{
- int temperature;
-
- if (wdtpci_get_temperature(&temperature))
- return -EFAULT;
-
- if (copy_to_user (buf, &temperature, 1))
- return -EFAULT;
-
- return 1;
-}
-
-/**
- * wdtpci_temp_open:
- * @inode: inode of device
- * @file: file handle to device
- *
- * The temperature device has been opened.
- */
-
-static int wdtpci_temp_open(struct inode *inode, struct file *file)
-{
- return nonseekable_open(inode, file);
-}
-
-/**
- * wdtpci_temp_release:
- * @inode: inode to board
- * @file: file handle to board
- *
- * The temperature device has been closed.
- */
-
-static int wdtpci_temp_release(struct inode *inode, struct file *file)
-{
- return 0;
-}
-#endif /* CONFIG_WDT_501_PCI */
-
-/**
- * notify_sys:
- * @this: our notifier block
- * @code: the event being reported
- * @unused: unused
- *
- * Our notifier is called on system shutdowns. We want to turn the card
- * off at reboot otherwise the machine will reboot again during memory
- * test or worse yet during the following fsck. This would suck, in fact
- * trust me - if it happens it does suck.
- */
-
-static int wdtpci_notify_sys(struct notifier_block *this, unsigned long code,
- void *unused)
-{
- if (code==SYS_DOWN || code==SYS_HALT) {
- /* Turn the card off */
- wdtpci_stop();
- }
- return NOTIFY_DONE;
-}
-
-/*
- * Kernel Interfaces
- */
-
-
-static const struct file_operations wdtpci_fops = {
- .owner = THIS_MODULE,
- .llseek = no_llseek,
- .write = wdtpci_write,
- .ioctl = wdtpci_ioctl,
- .open = wdtpci_open,
- .release = wdtpci_release,
-};
-
-static struct miscdevice wdtpci_miscdev = {
- .minor = WATCHDOG_MINOR,
- .name = "watchdog",
- .fops = &wdtpci_fops,
-};
-
-#ifdef CONFIG_WDT_501_PCI
-static const struct file_operations wdtpci_temp_fops = {
- .owner = THIS_MODULE,
- .llseek = no_llseek,
- .read = wdtpci_temp_read,
- .open = wdtpci_temp_open,
- .release = wdtpci_temp_release,
-};
-
-static struct miscdevice temp_miscdev = {
- .minor = TEMP_MINOR,
- .name = "temperature",
- .fops = &wdtpci_temp_fops,
-};
-#endif /* CONFIG_WDT_501_PCI */
-
-/*
- * The WDT card needs to learn about soft shutdowns in order to
- * turn the timebomb registers off.
- */
-
-static struct notifier_block wdtpci_notifier = {
- .notifier_call = wdtpci_notify_sys,
-};
-
-
-static int __devinit wdtpci_init_one (struct pci_dev *dev,
- const struct pci_device_id *ent)
-{
- int ret = -EIO;
-
- dev_count++;
- if (dev_count > 1) {
- printk (KERN_ERR PFX "this driver only supports 1 device\n");
- return -ENODEV;
- }
-
- if (pci_enable_device (dev)) {
- printk (KERN_ERR PFX "Not possible to enable PCI Device\n");
- return -ENODEV;
- }
-
- if (pci_resource_start (dev, 2) == 0x0000) {
- printk (KERN_ERR PFX "No I/O-Address for card detected\n");
- ret = -ENODEV;
- goto out_pci;
- }
-
- sema_init(&open_sem, 1);
- spin_lock_init(&wdtpci_lock);
-
- irq = dev->irq;
- io = pci_resource_start (dev, 2);
-
- if (request_region (io, 16, "wdt_pci") == NULL) {
- printk (KERN_ERR PFX "I/O address 0x%04x already in use\n", io);
- goto out_pci;
- }
-
- if (request_irq (irq, wdtpci_interrupt, IRQF_DISABLED | IRQF_SHARED,
- "wdt_pci", &wdtpci_miscdev)) {
- printk (KERN_ERR PFX "IRQ %d is not free\n", irq);
- goto out_reg;
- }
-
- printk ("PCI-WDT500/501 (PCI-WDG-CSM) driver 0.10 at 0x%04x (Interrupt %d)\n",
- io, irq);
-
- /* Check that the heartbeat value is within it's range ; if not reset to the default */
- if (wdtpci_set_heartbeat(heartbeat)) {
- wdtpci_set_heartbeat(WD_TIMO);
- printk(KERN_INFO PFX "heartbeat value must be 0<heartbeat<65536, using %d\n",
- WD_TIMO);
- }
-
- ret = register_reboot_notifier (&wdtpci_notifier);
- if (ret) {
- printk (KERN_ERR PFX "cannot register reboot notifier (err=%d)\n", ret);
- goto out_irq;
- }
-
-#ifdef CONFIG_WDT_501_PCI
- ret = misc_register (&temp_miscdev);
- if (ret) {
- printk (KERN_ERR PFX "cannot register miscdev on minor=%d (err=%d)\n",
- TEMP_MINOR, ret);
- goto out_rbt;
- }
-#endif /* CONFIG_WDT_501_PCI */
-
- ret = misc_register (&wdtpci_miscdev);
- if (ret) {
- printk (KERN_ERR PFX "cannot register miscdev on minor=%d (err=%d)\n",
- WATCHDOG_MINOR, ret);
- goto out_misc;
- }
-
- printk(KERN_INFO PFX "initialized. heartbeat=%d sec (nowayout=%d)\n",
- heartbeat, nowayout);
-#ifdef CONFIG_WDT_501_PCI
- printk(KERN_INFO "wdt: Fan Tachometer is %s\n", (tachometer ? "Enabled" : "Disabled"));
-#endif /* CONFIG_WDT_501_PCI */
-
- ret = 0;
-out:
- return ret;
-
-out_misc:
-#ifdef CONFIG_WDT_501_PCI
- misc_deregister(&temp_miscdev);
-out_rbt:
-#endif /* CONFIG_WDT_501_PCI */
- unregister_reboot_notifier(&wdtpci_notifier);
-out_irq:
- free_irq(irq, &wdtpci_miscdev);
-out_reg:
- release_region (io, 16);
-out_pci:
- pci_disable_device(dev);
- goto out;
-}
-
-
-static void __devexit wdtpci_remove_one (struct pci_dev *pdev)
-{
- /* here we assume only one device will ever have
- * been picked up and registered by probe function */
- misc_deregister(&wdtpci_miscdev);
-#ifdef CONFIG_WDT_501_PCI
- misc_deregister(&temp_miscdev);
-#endif /* CONFIG_WDT_501_PCI */
- unregister_reboot_notifier(&wdtpci_notifier);
- free_irq(irq, &wdtpci_miscdev);
- release_region(io, 16);
- pci_disable_device(pdev);
- dev_count--;
-}
-
-
-static struct pci_device_id wdtpci_pci_tbl[] = {
- {
- .vendor = PCI_VENDOR_ID_ACCESSIO,
- .device = PCI_DEVICE_ID_WDG_CSM,
- .subvendor = PCI_ANY_ID,
- .subdevice = PCI_ANY_ID,
- },
- { 0, }, /* terminate list */
-};
-MODULE_DEVICE_TABLE(pci, wdtpci_pci_tbl);
-
-
-static struct pci_driver wdtpci_driver = {
- .name = "wdt_pci",
- .id_table = wdtpci_pci_tbl,
- .probe = wdtpci_init_one,
- .remove = __devexit_p(wdtpci_remove_one),
-};
-
-
-/**
- * wdtpci_cleanup:
- *
- * Unload the watchdog. You cannot do this with any file handles open.
- * If your watchdog is set to continue ticking on close and you unload
- * it, well it keeps ticking. We won't get the interrupt but the board
- * will not touch PC memory so all is fine. You just have to load a new
- * module in xx seconds or reboot.
- */
-
-static void __exit wdtpci_cleanup(void)
-{
- pci_unregister_driver (&wdtpci_driver);
-}
-
-
-/**
- * wdtpci_init:
- *
- * Set up the WDT watchdog board. All we have to do is grab the
- * resources we require and bitch if anyone beat us to them.
- * The open() function will actually kick the board off.
- */
-
-static int __init wdtpci_init(void)
-{
- return pci_register_driver (&wdtpci_driver);
-}
-
-
-module_init(wdtpci_init);
-module_exit(wdtpci_cleanup);
-
-MODULE_AUTHOR("JP Nollmann, Alan Cox");
-MODULE_DESCRIPTION("Driver for the ICS PCI-WDT500/501 watchdog cards");
-MODULE_LICENSE("GPL");
-MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR);
-MODULE_ALIAS_MISCDEV(TEMP_MINOR);