i3c_master_enec_locked(9)

📦 version 7.3.1, in nixpkgs unstable

💅 i3c_master_enec_locked — a Kernel API Manual moment 🎀

okay so bestie, welcome to the Kernel API Manual entry for i3c_master_enec_locked(9) — yes that's the whole name, yes it's a mouthful, no we're not abbreviating it, it's iconic and we respect it. ✨

🌸 NAME 🌸

i3c_master_enec_locked — send an ENEC CCC command 🦋

Like, that's it. That's the whole job. It sends an ENEC CCC command. Slay.

✨ SYNOPSIS ✨

int i3c_master_enec_locked (struct i3c_master_controller *master , u8
addr , u8 evts );

Returns an int, takes three things, and honestly the signature is doing the absolute most with those line breaks but we love her anyway. 💖

🎀 ARGUMENTS 🎀

  • master — the master we're using to send frames on the bus. main character energy fr fr 👑
  • addr — a valid I3C slave address, or I3C_BROADCAST_ADDR if you're feeling like talking to everyone at once. Not me picking the broadcast option just to make it everyone's problem 🙈
  • evts — events to disable. yep, that's what it says. we move. 💀

🫶 DESCRIPTION 🫶

So what it actually does: it sends an ENEC CCC command to enable some or all events coming from one specific slave — or, if addr is I3C_BROADCAST_ADDR, from all the devices. the way that one address field changes the whole scope of the operation?? lowkey powerful. ⭐

⚠️ okay this part is the vibe check that matters: this function must be called with the bus lock held in write mode. no cap. don't skip the lock. the _locked in the name is not decorative, bestie 😭🔒

🌈 RETURN 🌈

  • 0 — success, we ate, everything is fine and the bus is happy 🍓
  • a negative error code — otherwise. and if you see that, something went sideways. ngl, that's the sad part of the story 😭

💜 SEE ALSO 💜

the whole friend group, and yes we're listing every single one of them because nobody gets left behind. periodt. 👑

Kernel file ./drivers/i3c/master.c

iykyk, it's giving "read the whole API surface or else". 📚✨

and that's the page!! 🧚 source: ./drivers/i3c, version/date situation: October 2026 — mwah, love u, go hold that bus lock in write mode 💖💅🎀

📦 where this page comes from