ENUM DPLL_TYPE(9)

💅 enum dpll_type(9)

okay bestie, welcome to the Kernel API Manual ✨ — yes we're reading kernel headers for fun now, this is who we are. Today's main character is enum dpll_type, and it's literally the thing that tells you what kind of dpll you're dealing with — it's the set of valid values for the DPLL_A_TYPE attribute 🎀

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🌸 NAME 🌸

enum dpll_type — the type of dpll, aka the valid values you can shove into the DPLL_A_TYPE attribute. that's it, that's the vibe 💖

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✨ SYNOPSIS ✨

enum dpll_type {
    DPLL_TYPE_PPS ,
    DPLL_TYPE_EEC ,
    DPLL_TYPE_GENERIC

};

look at her go. three constants, zero drama 🦋

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🎀 Constants 🎀

• DPLL_TYPE_PPS — this dpll produces a Pulse-Per-Second signal ⏱️ like, one pulse. every second. exactly what it says on the tin, no cap.
• DPLL_TYPE_EEC — this dpll drives the Ethernet Equipment Clock 💅 she's out here running the clock for ethernet gear, very responsible, very employed.
• DPLL_TYPE_GENERIC — the generic dpll type, for devices that live outside the PPS/EEC classes 🙈 not every dpll fits in a neat little box and that's okay, we love a flexible icon.

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🦋 SEE ALSO 🦋

• the kernel file ./include/uapi/linux/dpll.h — go read the source bestie, it's all there 📖
• enum dpll_mode(9)
• enum dpll_lock_status(9)
• enum dpll_lock_status_error(9)
• enum dpll_pin_type(9)
• enum dpll_pin_direction(9)
• enum dpll_pin_state(9)
• enum dpll_pin_operstate(9)
• enum dpll_pin_capabilities(9)
• enum dpll_feature_state(9)

like a whole friend group of enums, honestly iconic 👑

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ngl this one's short and sweet — no dangerous flags, no undefined behaviour, just three constants chilling in a header file 💀 enjoy the peace while it lasts 🫶

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and that's the whole page!! brought to you by ./include/uapi/linux, dated October 2026, from the Kernel API Manual — mwah, slay, periodt ⭐🍓🧚💜