CONFIG_WDT: WDT Watchdog timer

General informations

The Linux kernel configuration item CONFIG_WDT has multiple definitions:

WDT Watchdog timer found in drivers/watchdog/Kconfig

The configuration item CONFIG_WDT:

• prompt: WDT Watchdog timer
• type: tristate
• depends on: ( CONFIG_ISA ) && ( CONFIG_PCI )
• defined in drivers/watchdog/Kconfig
• found in Linux kernels: 2.6.24–2.6.39, 3.0–3.19, 4.0–4.20, 5.0–5.19, 6.0–6.13
• modules built: wdt, wdt, wdt

Help text

If you have a WDT500P or WDT501P watchdog board, say Y here, otherwise N. It is not possible to probe for this board, which means that you have to inform the kernel about the IO port and IRQ that is needed (you can do this via the io and irq parameters)

To compile this driver as a module, choose M here: the module will be called wdt.

WDT Watchdog timer found in drivers/char/watchdog/Kconfig

The configuration item CONFIG_WDT:

• prompt: WDT Watchdog timer
• type: tristate
• depends on: CONFIG_ISA
• defined in drivers/char/watchdog/Kconfig
• found in Linux kernels: 2.5.49–2.5.75, 2.6.0–2.6.23
• modules built: wdt, wdt, wdt

Help text

If you have a WDT500P or WDT501P watchdog board, say Y here, otherwise N. It is not possible to probe for this board, which means that you have to inform the kernel about the IO port and IRQ that is needed (you can do this via the io and irq parameters)

To compile this driver as a module, choose M here: the module will be called wdt.

WDT Watchdog timer found in drivers/char/Kconfig

The configuration item CONFIG_WDT:

• prompt: WDT Watchdog timer
• type: tristate
• depends on: CONFIG_WATCHDOG
• defined in drivers/char/Kconfig
• found in Linux kernels: 2.5.45–2.5.48
• modules built: wdt, wdt, wdt

Help text

If you have a WDT500P or WDT501P watchdog board, say Y here, otherwise N. It is not possible to probe for this board, which means that you have to inform the kernel about the IO port and IRQ using the "wdt=" kernel option (try "man bootparam" or see the documentation of your boot loader (lilo or loadlin) about how to pass options to the kernel at boot time).

If you want to compile this as a module ( = code which can be inserted in and removed from the running kernel whenever you want), say M here and read Documentation/modules.txt. The module will be called wdt.o.

Hardware

LKDDb

Raw data from LKDDb:

• lkddb module wdt CONFIG_WDT : drivers/char/Kconfig : "WDT Watchdog timer" # in 2.5.45–2.5.48
• lkddb module wdt CONFIG_WDT : drivers/char/watchdog/Kconfig : "WDT Watchdog timer" # in 2.5.49–2.5.75, 2.6.0–2.6.23
• lkddb module wdt CONFIG_WDT : drivers/watchdog/Kconfig : "WDT Watchdog timer" # in 2.6.24–2.6.39, 3.0–3.19, 4.0–4.20, 5.0–5.19, 6.0–6.13

Sources

This page is automaticly generated with free (libre, open) software lkddb(see lkddb-sources).

The data is retrived from:

• Linux kernel
• Linux Kernel Driver DataBase (LKDDb)

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