mei_pxp_send_message(9)

📦 version 7.3.1, in nixpkgs unstable

💌 mei_pxp_send_message(9)

okay bestie, so this is a page from the Kernel API Manual, and it's literally about yeeting a PXP message over to ME FW 👑 that's the whole vibe, and honestly? iconic.

✨ NAME ✨

mei_pxp_send_message — sends a PXP message to ME FW 💅 no cap, that's it, that's the function.

🦋 SYNOPSIS 🦋

int mei_pxp_send_message (struct device *dev , const void *message ,
size_t size , unsigned long timeout_ms );

🎀 ARGUMENTS 🎀

  • dev — the device that corresponds to the mei_cl_device 🫶 like, this is your "who am I even talking to" pointer.
  • message — a message buffer to send 📨 the actual payload, the whole point, the main character.
  • size — size of the message 🌸 gotta tell it how many bytes you're serving up.
  • timeout_ms — timeout in milliseconds, and lowkey the important bit: zero means wait indefinitely 😭 so if you pass 0, bestie, we're waiting forever.

🔥 RETURN 🔥

0 on Success 🎉 and < 0 on Failure, with the following defined failures:

  • -ENODEV — client was not connected 💀 but good news: the caller may attempt to try again immediately.
  • -ENOMEM — internal memory allocation failure experienced 🍓 the caller may sleep to let the kernel reclaim before retrying, so like... take a lil nap, you'll be fine.
  • -EINTR — the calling thread received a signal 🙈 the caller may choose to abandon with the same thread id.
  • -ETIME — request is timed out ⏰ caller may attempt to try again immediately.

💜 SEE ALSO 💜

like, read the whole squad, iykyk 🧚

fr fr one more time: timeout_ms being 0 = wait indefinitely. don't say I didn't warn you 💀

and that's the whole page, bestie 🎀 sign-off time: this one lives at ./drivers/misc/mei/pxp, dated October 2026, mei_pxp_send_message(9) — slay, go send some messages 🌈✨👑

📦 where this page comes from