rtc-m41t80.c (4e73e0eb633f8a1b5cbf20e7f42c6dbfec1d1ca7) rtc-m41t80.c (55929332c92e5d34d65a8f784604c92677ea3e15)
1/*
2 * I2C client/driver for the ST M41T80 family of i2c rtc chips.
3 *
4 * Author: Alexander Bigga <ab@mycable.de>
5 *
6 * Based on m41t00.c by Mark A. Greer <mgreer@mvista.com>
7 *
8 * 2006 (c) mycable GmbH

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618 * @file: file handle to the device
619 * @cmd: watchdog command
620 * @arg: argument pointer
621 *
622 * The watchdog API defines a common set of functions for all watchdogs
623 * according to their available features. We only actually usefully support
624 * querying capabilities and current status.
625 */
1/*
2 * I2C client/driver for the ST M41T80 family of i2c rtc chips.
3 *
4 * Author: Alexander Bigga <ab@mycable.de>
5 *
6 * Based on m41t00.c by Mark A. Greer <mgreer@mvista.com>
7 *
8 * 2006 (c) mycable GmbH

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618 * @file: file handle to the device
619 * @cmd: watchdog command
620 * @arg: argument pointer
621 *
622 * The watchdog API defines a common set of functions for all watchdogs
623 * according to their available features. We only actually usefully support
624 * querying capabilities and current status.
625 */
626static int wdt_ioctl(struct inode *inode, struct file *file, unsigned int cmd,
626static int wdt_ioctl(struct file *file, unsigned int cmd,
627 unsigned long arg)
628{
629 int new_margin, rv;
630 static struct watchdog_info ident = {
631 .options = WDIOF_POWERUNDER | WDIOF_KEEPALIVEPING |
632 WDIOF_SETTIMEOUT,
633 .firmware_version = 1,
634 .identity = "M41T80 WTD"

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671 wdt_ping();
672 }
673
674 return -EINVAL;
675 }
676 return -ENOTTY;
677}
678
627 unsigned long arg)
628{
629 int new_margin, rv;
630 static struct watchdog_info ident = {
631 .options = WDIOF_POWERUNDER | WDIOF_KEEPALIVEPING |
632 WDIOF_SETTIMEOUT,
633 .firmware_version = 1,
634 .identity = "M41T80 WTD"

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671 wdt_ping();
672 }
673
674 return -EINVAL;
675 }
676 return -ENOTTY;
677}
678
679static long wdt_unlocked_ioctl(struct file *file, unsigned int cmd,
680 unsigned long arg)
681{
682 int ret;
683
684 lock_kernel();
685 ret = wdt_ioctl(file, cmd, arg);
686 unlock_kernel();
687
688 return ret;
689}
690
679/**
680 * wdt_open:
681 * @inode: inode of device
682 * @file: file handle to device
683 *
684 */
685static int wdt_open(struct inode *inode, struct file *file)
686{

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731 /* Disable Watchdog */
732 wdt_disable();
733 return NOTIFY_DONE;
734}
735
736static const struct file_operations wdt_fops = {
737 .owner = THIS_MODULE,
738 .read = wdt_read,
691/**
692 * wdt_open:
693 * @inode: inode of device
694 * @file: file handle to device
695 *
696 */
697static int wdt_open(struct inode *inode, struct file *file)
698{

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743 /* Disable Watchdog */
744 wdt_disable();
745 return NOTIFY_DONE;
746}
747
748static const struct file_operations wdt_fops = {
749 .owner = THIS_MODULE,
750 .read = wdt_read,
739 .ioctl = wdt_ioctl,
751 .unlocked_ioctl = wdt_unlocked_ioctl,
740 .write = wdt_write,
741 .open = wdt_open,
742 .release = wdt_release,
743};
744
745static struct miscdevice wdt_dev = {
746 .minor = WATCHDOG_MINOR,
747 .name = "watchdog",

--- 166 unchanged lines hidden --- 		752 .write = wdt_write,
753 .open = wdt_open,
754 .release = wdt_release,
755};
756
757static struct miscdevice wdt_dev = {
758 .minor = WATCHDOG_MINOR,
759 .name = "watchdog",

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