ENUM BACKLIGHT_TYPE(9)

💅 enum backlight_type(9)

okay so real talk, this is a page from the Kernel API Manual and it's all about enum backlight_type — literally the vibe of your backlight's control interface. yes bestie, your screen brightness has lore 🌈

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✨ NAME ✨

enum backlight_type — the type of backlight control 🎀

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🦋 SYNOPSIS 🦋

enum backlight_type {
    BACKLIGHT_RAW ,
    BACKLIGHT_PLATFORM ,
    BACKLIGHT_FIRMWARE ,
    BACKLIGHT_TYPE_MAX

};

like, that's the whole enum, no cap. four constants, iconic lineup 👑

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🌸 Constants 🌸

• BACKLIGHT_RAW — the backlight is controlled using hardware registers. straight-up poking the silicon, main character energy 🔥
• BACKLIGHT_PLATFORM — the backlight is controlled using a platform-specific interface. so it's giving "your board knows best" vibes 💅
• BACKLIGHT_FIRMWARE — the backlight is controlled using a standard firmware interface. the firmware handles it, you just vibe 🧚
• BACKLIGHT_TYPE_MAX — Number of entries. that's the count, the whole population, the census result 🍓

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💜 Description 💜

The type of interface used to control the backlight. that's it, that's the thesis ✨ it's literally just describing which kind of interface is doing the brightness work — raw registers, something platform-specific, or a standard firmware thing. pick your fighter 😭

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🫶 SEE ALSO 🫶

Kernel file ./include/linux/backlight.h plus the whole friend group:

• enum backlight_update_reason(9)
• struct backlight_ops(9)
• struct backlight_properties(9)
• struct backlight_device(9)
• backlight_update_status(9)
• backlight_enable(9)
• backlight_disable(9)
• backlight_is_blank(9)
• backlight_get_brightness(9)
• bl_get_data(9)

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go read them, fr fr, they're all in ./include/linux/backlight.h and they ate 💀💖

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okay that's the page!! this one lives in ./include/linux, dated October 2026, and it's filed under enum backlight_type(9) — ty for coming to my ted talk, mwah 💅🎀🌟