__mei_cl_send(9)

📦 version 7.3.1, in nixpkgs unstable

💌 __mei_cl_send — the internal client send (write) bestie 💌

okay so real talk, this is __mei_cl_send(9) from the Kernel API Manual, and hi, welcome, this is the note you send your group chat when you want bytes to actually leave the building ✨ She's the internal send — the write side, the "put it in the buffer and yeet it" energy 💅

✨ SYNOPSIS ✨

ssize_t __mei_cl_send (struct mei_cl *cl , const u8 *buf , size_t length
, u8 vtag , unsigned int mode );

that's the whole vibe, five args, returns an ssize_t, no notes 🫶

🎀 ARGUMENTS 🎀

  • cl — the host client, like who's sending 💖 this is your main character.
  • buf — the buffer to send, aka the actual goods you're shipping out 🍓
  • length — the buffer length, like how much of the goods, be honest with her.
  • vtag — the virtual tag 🏷️ a u8, cute and little.
  • mode — the sending mode, an unsigned int, iykyk.

🌸 RETURN 🌸

you get written size bytes back, or < 0 on error 😭 (yeah, the sad path exists, respect it).

fr fr check that return value, bestie — a negative is not a slay, it's a whole error.

🦋 SEE ALSO 🦋

the Kernel file ./drivers/misc/mei/bus.c is your starting point, and then the whole extended friend group 👑:

like, that's the whole roster, no cap, every single one 💜

okay bye bestie, go send some bytes 🧚 and remember — this page lives at ./drivers/misc/mei, dated October 2026, so screenshot the date and hydrate 💅

📦 where this page comes from