[WATCHDOG] mpc5200_wdt clean-up

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* Add MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR);
* Add mandatory WDIOC_GETSTATUS and WDIOC_GETBOOTSTATUS ioctl's.
* If unknown ioctl is used we should return -ENOTTY.
* All watchdog device drivers are VFSs (Virtual File Systems).
  We thus return a nonseekable_open(inode, file) when we open the VFS.
* Make sure that /dev/watchdog can be opened by 1 parent
* Add spin-locking to prevent that forked children can disturb
  each other's operations.

Signed-off-by: Wim Van Sebroeck <wim@iguana.be>

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Wim Van Sebroeck 2007-07-20 21:22:58 +00:00

parent 7d831bf59a

commit de81225a87

1 changed files with 30 additions and 2 deletions

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drivers/char/watchdog/mpc5200_wdt.c

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