kempld_write16(9)

📦 version 7.3.1, in nixpkgs unstable

💅 kempld_write16(9) — like, the Kernel API Manual page, bestie 🎀

okay so you found your way to kempld_write16(9), a very iconic little entry in the Kernel API Manual (section 9, we love a numbered section ✨). sit down, grab a strawberry drink 🍓, and let's get into it.

✨ NAME ✨

kempld_write16 — write 16 bit register. that's it, that's the whole vibe. writing. sixteen. bits. 👑

🌸 SYNOPSIS 🌸

void kempld_write16 (struct kempld_device_data *pld , u8 index , u16 data );

literally just look at her. void return, three args, no notes. 🫶

🦋 ARGUMENTS 🦋

  • pld — the kempld_device_data structure describing the PLD. it's the whole personality of the device, fr.
  • index — register index on the chip. which register we're talking about, iykyk.
  • data — new register value. the fresh little value going in. 💖

💜 DESCRIPTION 💜

so here's the thing, and I need you to hear me on this one:

kempld_get_mutex must be called prior to calling this function.

like, must must. not optional, not "if you feel like it", not a suggestion. call the mutex first, bestie. 🔒 the page does not say what happens if you don't, so I'm not gonna invent drama — just know the manpage is very clear and I respect her for it. 😌

🌈 SEE ALSO 🌈

the whole friend group shows up here, and honestly? obsessed.

Kernel file ./drivers/mfd/kempld-core.c — the main character file itself. 🧚

then the crew:

(notice how kempld_get_mutex(9) is right there? yeah. we been knew. 🔥)

and that's the page!! slay. 💅

cute little sign-off: this gem lives under ./drivers/mfd, dated October 2026, and it's filed as kempld_write16(9) — periodt. ⭐
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