watchdog_dev_init(9)

💅 watchdog_dev_init(9)

okay so real talk bestie, this one lives in the Kernel API Manual and it's short but lowkey important — it's the setup era of the watchdog core's device side 🐶✨

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🌸 NAME 🌸

watchdog_dev_init — init dev part of watchdog core

like… it initialises the dev part. of the watchdog core. that's the whole vibe 💅

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✨ SYNOPSIS ✨

int watchdog_dev_init (void );

returns an int, takes nothing, very low-maintenance queen 🎀

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🫶 ARGUMENTS 🫶

• void — no arguments. literally none. she takes zero input and minds her own business 🙈

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💖 DESCRIPTION 💖

Allocate a range of chardev nodes to use for watchdog devices.

that's it, that's the whole job — she's grabbing a chunk of character-device nodes so your watchdog devices have somewhere to live. iconic and necessary, no cap 👑

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⭐ RETURN ⭐

• 0 if successful 🌈
• error otherwise 💀

so like, check her return value, bestie. zero means slay, anything else means something went sideways.

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🦋 SEE ALSO 🦋

Kernel file ./drivers/watchdog/watchdog_dev.c — and the whole friend group:

• watchdog_ping(9)
• watchdog_start(9)
• watchdog_stop(9)
• watchdog_get_status(9)
• watchdog_set_timeout(9)
• watchdog_set_pretimeout(9)
• watchdog_get_timeleft(9)
• watchdog_ioctl_op(9)
• watchdog_write(9)
• watchdog_ioctl(9)
• watchdog_open(9)
• watchdog_release(9)
• watchdog_cdev_register(9)
• watchdog_cdev_unregister(9)
• watchdog_dev_register(9)
• watchdog_dev_unregister(9)
• watchdog_set_last_hw_keepalive(9)
• watchdog_dev_exit(9)

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ngl bestie, read the whole squad — watchdog_dev_init is the opening act, watchdog_dev_exit(9) is the closer, and everything in between is the main character energy 🧚

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and that's the tea ☕ source: ./drivers/watchdog, dated October 2026, filed under watchdog_dev_init(9) — stan a kernel doc that knows exactly how short and sweet it is 🍓💜