wdt_set_timeout(9)

💅 wdt_set_timeout(9) 💅

okay so real talk, bestie — we're deep in the Kernel API Manual today, section 9, and the star of the show is wdt_set_timeout. she sets a new timeout value with a watchdog ioctl. that's her whole job. iconic, honestly. ✨

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🎀 NAME 🎀

wdt_set_timeout — set a new timeout value with watchdog ioctl 🐕

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🌸 SYNOPSIS 🌸

int wdt_set_timeout (struct watchdog_device *wdd , unsigned int t );

like… look at her. two args, one int coming back. no cap, she's lowkey elegant. 🦋

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✨ ARGUMENTS ✨

• wdd — pointer to the watchdog_device structure 🫶 like, this is the watchdog device herself, bestie, you gotta hand her over
• t — timeout value in seconds ⏱️ (yes, seconds, not vibes — actual seconds)

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💖 DESCRIPTION 💖

so the hardware device has an 8 or 16 bit watchdog timer — and which one you get depends on the chip version, iykyk 🔥 that timer can be configured to count in seconds or in minutes, and honestly? range. 👑

she's used within the WDIOC_SETTIMEOUT watchdog device ioctl. that's the whole context, that's her main character moment. 💅

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⭐ RETURN ⭐

• 0 if the timeout was set successfully 🎉 slay, we love a zero
• a negative error code on failure 😭 okay so if you get a negative back, something went wrong, no cap

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🦋 SEE ALSO 🦋

Kernel file ./drivers/watchdog/it87_wdt.c — go read the source, bestie, it's giving lore 📖✨

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🎀 friendly reminder that this page lives under ./drivers/watchdog, is dated October 2026, and is officially wdt_set_timeout(9) — so if you forget where you read this, the manual will absolutely remind you. periodt. 💜🧚‍♀️🌈