mei_hdcp_rep..._prepare_ack(9)

📦 version 7.3.1, in nixpkgs unstable

💅 mei_hdcp_rep..._prepare_ack(9) 💅

okay so bestie, welcome to the Kernel API Manual ✨ — yes, that Kernel API Manual, the one with the big book energy 📚. Today's main character is mei_hdcp_repeater_check_flow_prepare_ack(9), and honestly? She does a lot. Let's get into it 🫶

🌸 NAME 🌸

mei_hdcp_repeater_check_flow_prepare_ack — validate the Downstream topology and prepare rep_ack. That's it, that's the whole job, and she ate 💅

✨ SYNOPSIS ✨

int mei_hdcp_repeater_check_flow_prepare_ack (struct device *dev ,
       struct hdcp_port_data *data , struct hdcp2_rep_send_receiverid_list
       *rep_topology , struct hdcp2_rep_send_ack *rep_send_ack );

like, four args, one int back, no cap 🔥

🎀 ARGUMENTS 🎀

  • dev — the device that corresponds to the mei_cl_device. your lil device bestie 🌈
  • data — Intel HW specific hdcp data. hardware gossip, Intel-flavoured 💜
  • rep_topology — Receiver ID List to be validated. this is the one getting the vibe check 👀
  • rep_send_ack — repeater ack from ME FW. straight from the firmware, fresh off the ME 🍓

⭐ RETURN ⭐

Returns 0 on Success, and <0 on Failure. slay when it's 0, cry when it's negative 😭

🦋 SEE ALSO 🦋

the whole friend group, fr fr — they all live in the Kernel file ./drivers/misc/mei/hdcp/mei_hdcp.c 👑

ngl bestie, that's the whole page — go forth and validate that topology 💖

and that's a wrap, mwah 💋 — this icon ships from ./drivers/misc/mei/hdcp, dated October 2026, and she's serving mei_hdcp_rep..._prepare_ack(9) energy till the end 🧚‍♀️⭐

📦 where this page comes from