wdt_ping(9)

💖 wdt_ping(9) 💖

okay so welcome to the Kernel API Manual bestie, today's main character is wdt_ping and honestly? she's short, she's sweet, she's got one job. let's get into it ✨

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🌸 NAME 🌸

wdt_ping — and that's literally all the original gives us, no description line, no tea, nothing. the name is the whole personality 🫶 (it's the watchdog ping. you already knew that. iykyk.)

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🎀 SYNOPSIS 🎀

void wdt_ping (void );

look at her. no return value, no params, just vibes and a void. lowkey iconic 💅

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🦋 ARGUMENTS 🦋

• void — no arguments 💀 like, none. zero. she takes nothing from you. she simply is.

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⭐ DESCRIPTION ⭐

so here's the whole plot: wdt_ping reloads counter one with the watchdog heartbeat. that's the move. that's the entire move 🎯

and then the fun part — the docs straight up say we don't bother reloading the cascade counter. not "we tried and failed," not "it's a bug," just: not bothered. the cascade counter is on its own journey, we're not texting it back 🙈

fr fr, that's the entire documented behaviour. don't go reading extra powers into this one, bestie — she pings counter one and minds her business 💖

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🌈 SEE ALSO 🌈

the whole watchdog friend group lives in the kernel file ./drivers/watchdog/wdt.c — go say hi to all of them 👑:

• wdt_start(9)
• wdt_stop(9)
• wdt_set_heartbeat(9)
• wdt_get_status(9)
• wdt_get_temperature(9)
• wdt_interrupt(9)
• wdt_write(9)
• wdt_ioctl(9)
• wdt_open(9)
• wdt_release(9)
• wdt_temp_read(9)
• wdt_temp_open(9)
• wdt_temp_release(9)
• wdt_notify_sys(9)
• wdt_exit(9)
• wdt_init(9)

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and that's the whole page!! mwah 💋 this little gem comes to you from ./drivers/watchdog, dated October 2026 — stamp it, frame it, put it on the fridge 🧚✨ bye bestie, go ping responsibly 🍓