ENUM SFH_MESSAGE_TYPE(9)

💅 enum sfh_message_type(9) — from the Kernel API Manual, bestie 🎀

okay so real talk, this is a kernel API manual page and it's literally all about querying the SFH message type ✨ ngl it's short but it's iconic and we're gonna get into it 🫶

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🦋 NAME 🦋

enum sfh_message_type — the one that lets you query the SFH message type, periodt 💅

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✨ SYNOPSIS ✨

like, here's the whole enum, no cap, exactly as it is:

enum sfh_message_type {
    MT_HPD ,
    MT_ALS ,
    MT_SRA ,
    MT_OP_MODE

};

that's it, that's the vibe 🌸

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🎀 Constants 🎀

these are the four constants and honestly each one is doing its own main character thing 👑

• MT_HPD — Message ID to know the Human presence info from MP2 FW 💖 like, is a human there or not, that's the whole assignment
• MT_ALS — Message ID to know the Ambient light info from MP2 FW ☀️ ambient light data, slay
• MT_SRA — Message ID to know the SRA data from MP2 FW 📊 SRA data coming at you from the MP2 FW
• MT_OP_MODE — Message ID to know the operating-mode (tablet/laptop) info 💻 so like, tablet or laptop, which one are we, iykyk

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🌈 SEE ALSO 🌈

go look at these too bestie, they're all in the kernel file ./include/linux/amd-pmf-io.h 🧚

• enum sfh_hpd_info(9)
• struct amd_sfh_info(9)
• enum sfh_dev_mode(9)
• struct amd_pmf_npu_metrics(9)

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ngl that's the whole page 💀 short and sweet, but every single detail is there, fr fr. go read the other ones too, they're lowkey obsessed with you 🫶

okay bye bestie!! this page came from ./include/linux and it's dated October 2026 ⭐ so like, remember it's old but it ate 💅✨🎀