mei_hdcp_component_match(9)

💅 mei_hdcp_component_match(9) 💅

okay so bestie, welcome to the Kernel API Manual — this one's a little function with main character energy and honestly? it's giving matchmaker. let's get into it 🎀

---

✨ NAME ✨

mei_hdcp_component_match — the compare function that decides whether mei hdcp is a match 💖 (yes, literally a matchmaking function, no cap)

---

🌸 SYNOPSIS 🌸

int mei_hdcp_component_match (struct device *dev , int subcomponent ,
       void *data );

---

🦋 ARGUMENTS 🦋

• dev — the master device 👑 (the big boss device, the parent figure)
• subcomponent — the subcomponent we're trying to match, and it's I915_COMPONENT_HDCP 🎯
• data — the compare data, which is the mei hdcp device 🫶 (this is the one being checked against)

---

💜 DESCRIPTION 💜

so what does it actually do? it runs a little vibe check 🔍 — the function checks three things:

1. is the driver i915? 🚗
2. is the subcomponent HDCP? 🔒
3. are the grand parent of hdcp and the parent of i915 the same PCH device? 👀 (yes, the family tree has to line up, iykyk)

if all of that lines up, it's a match fr fr 💘

---

🔥 RETURN 🔥

• 1 — if the components match ✅ slay, we have a match
• 0 — otherwise 🙈 nope, not it

---

🌈 SEE ALSO 🌈

the whole friend group 💅 — go read these too:

• Kernel file ./drivers/misc/mei/hdcp/mei_hdcp.c
• MEI_HDCP Client Driver(9)
• mei_hdcp_initiate_session(9)
• mei_hdcp_verify_receiver_cert_prepare_km(9)
• mei_hdcp_verify_hprime(9)
• mei_hdcp_store_pairing_info(9)
• mei_hdcp_initiate_locality_check(9)
• mei_hdcp_verify_lprime(9)
• mei_hdcp_get_session_key(9)
• mei_hdcp_repeater_check_flow_prepare_ack(9)
• mei_hdcp_verify_mprime(9)
• mei_hdcp_enable_authentication(9)
• mei_hdcp_close_session(9)

---

and that's the whole page bestie, you ate that 🍓✨

source path: ./drivers/misc/mei/hdcp · dated October 2026 · this was mei_hdcp_component_match(9) — go forth and match some components 💖🎀🦋