eurwdt_ioctl(9)

💅 eurwdt_ioctl(9) — the Kernel API Manual, bestie edition

okay so this is eurwdt_ioctl, straight out of the Kernel API Manual, and yes the name line in the original is literally just the function name followed by a lonely little dash with nothing after it 😭. Not me leaving the description blank. That's just how it was handed to me, and I respect the mystery. 🎀

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✨ NAME ✨

eurwdt_ioctl — (and the original genuinely just trails off into a dash here, no description, iconic behaviour honestly 🫶)

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🌸 SYNOPSIS 🌸

long eurwdt_ioctl (struct file *file , unsigned int cmd , unsigned long
arg );

like, that's the whole vibe. three args, one long coming back at you, periodt. 💖

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🦋 ARGUMENTS 🦋

• file — the file handle to the device, aka your little passport into the watchdog's world 🎟️
• cmd — the watchdog command, this is the actual instruction you're sending in 💌
• arg — an argument pointer, the extra lil sidecar of info that rides along 🧚

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🔥 DESCRIPTION 🔥

so the watchdog API defines a common set of functions for all watchdogs, based on whatever features each one actually has. that's the whole deal fr fr — one shared family of functions, and every watchdog picks from it according to its available features. no cap, that's the scope of it. 👑

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💜 SEE ALSO 💜

• Kernel file ./drivers/watchdog/eurotechwdt.c — go read the source, iykyk 📖
• eurwdt_ping(9)
• eurwdt_write(9)
• eurwdt_open(9)
• eurwdt_release(9)
• eurwdt_notify_sys(9)
• eurwdt_exit(9)
• eurwdt_init(9)

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bestie pls note: this page does not spell out what each command does or what values cmd takes — the original doesn't either, so i'm not out here inventing lore 🙈. check the source file and the buddies above for the real tea. ☕

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and that's the page!! 🫶 source situation: ./drivers/watchdog, dated October 2026 — mwah, love that for us, see you in the next one, bye 💅✨🌈