__mei_cl_send_timeout(9)

📦 version 7.3.1, in nixpkgs unstable

💅 __mei_cl_send_timeout — the Kernel API Manual tea 🫖✨

okay so bestie, welcome to the <pink>Kernel API Manual</pink> page for __mei_cl_send_timeout(9), and no cap this one is a little internal baddie that lives in the kernel and does the actual sending. it's the behind-the-scenes version, iykyk.

✨ NAME ✨

__mei_cl_send_timeout — internal client send (write) 💌

like literally, it's the internal send. the write. the "put the bytes out there" one. she's not the public-facing icon, she's the one doing the werk backstage 👑

🌸 SYNOPSIS 🌸

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

🎀 ARGUMENTS 🎀

  • cl — the host client. your main character, the one we're sending stuff for 🫶
  • buf — the buffer to send. this is the actual payload, the little package 🎁
  • length — the buffer length. how many bytes are in that package, fr fr
  • vtag — the virtual tag. tags her so everyone knows which vibe she belongs to 🏷️
  • mode — the sending mode. how she's choosing to show up today
  • timeout — send timeout in milliseconds. ⏰ but listen: it's effective only for blocking writes, meaning the MEI_CL_IO_TX_BLOCKING mode bit is set. set timeout to MAX_SCHEDULE_TIMEOUT to get the maixum allowed wait — and yes bestie the page literally spells it "maixum", we're keeping her exactly as she is, she's iconic 💀
lowkey important: that timeout is a blocking-writes-only situation. if you're not blocking, she's not waiting around for you 🙈

🔥 RETURN 🔥

written size bytes — or < 0 on error 😭

that's it. that's the whole mood. success gives you bytes written, failure gives you a negative number and you go scream into a pillow.

🦋 SEE ALSO 🦋

she has so many friends, bestie. the whole mei bus friend group, plus the kernel file ./drivers/misc/mei/bus.c. vibe check passed, everyone's here 🌈

kisses bestie, go read the source, she's from ./drivers/misc/mei, dated October 2026, and this page is __mei_cl_send_timeout(9) and she ate 💅💖

📦 where this page comes from