pc87413_ioctl(9)

📦 version 7.3.1, in nixpkgs unstable

💅 pc87413_ioctl(9) 💅

okay bestie, so this is a page straight out of the Kernel API Manual — it's pc87413_ioctl, section 9, and ngl the NAME section is literally just vibing there with no description attached. empty. blank. a little mysterious. we love a cryptic icon ✨

🦋 SYNOPSIS 🦋

long pc87413_ioctl (struct file *file , unsigned int cmd , unsigned long
       arg );

that's the whole signature, bestie — long return, three args, and yes the spacing in the original is exactly like that, we do not fix the formatting, we respect the formatting 🫶

🎀 ARGUMENTS 🎀

  • file — the file handle to the device. that's your lil entry point, your main character connection to the thing 💅
  • cmd — the watchdog command. this is the instruction, the ask, the "hey do this" of the whole operation ✨
  • arg — an argument pointer. it's pointing at something, and that something is a detail you're passing along 🎯

🌸 DESCRIPTION 🌸

okay so here's the tea ☕ — the watchdog API defines a common set of functions for all watchdogs, based on whatever features each one actually has. like, uniform interface, different hardware, we stan consistency 👑

but plot twist: this one only actually usefully supports two things — querying capabilities and current status. that's it. that's the whole menu. no cap 😭

so like, don't come here looking for the full buffet. it's a vibe check and a status check, and honestly? iconic for knowing its limits 💀

🔥 SEE ALSO 🔥

kernel file ./drivers/watchdog/pc87413_wdt.c and the whole friend group:

go read them all, iykyk 🧚💜

fr fr, that's the whole page. no hidden options, no sneaky env vars, no exit status lore. just the signature, the three args, the two supported things, and the squad in SEE ALSO 🌈

xoxo, this page lives under ./drivers/watchdog, dated October 2026 — slay, see you in the next release 💖🎀🦋

📦 where this page comes from