STRUCT POWERCAP_CONTROL_TYPE_OPS(9)

💅 struct powercap_control_type_ops(9)

okay so bestie, welcome to the Kernel API Manual — this is the page for struct powercap_control_type_ops, and it's basically the vibe contract your driver signs when it wants to be a powercap control type. it's giving "define your callbacks or perish" ✨

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🌸 NAME 🌸

struct powercap_control_type_ops — literally the place where you define your control type callbacks, no cap 🎀

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🦋 SYNOPSIS 🦋

struct powercap_control_type_ops {
    int (*set_enable) (struct powercap_control_type *, bool mode);
    int (*get_enable) (struct powercap_control_type *, bool *mode);
    int (*release) (struct powercap_control_type *);
 };

look at her. three function pointers. main character energy 💅

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👑 MEMBERS 👑

• set_enable — turns the whole control type on or off. the default is enabled, but this callback is what lets all the zones slide into a disabled state and yeet any applied power limits. lowkey important: if it's disabled, a power zone can only be monitored, not controlled. so like, watching from the sidelines only 🙈
• get_enable — just gets the current Enable/Disable status. the vibe check of callbacks 💖
• release — a callback that tells you the last reference to this control type is closed. so at that point it's totally safe to free the data structure associated with this control type 🫶 this callback is mandatory if the client owns the memory for the control type — like, not optional, fr fr.

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✨ DESCRIPTION ✨

this structure is where you define the control type callbacks that client drivers have to implement. that's the whole gig. she's a contract, she's a blueprint, she's iconic 💜

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🌈 SEE ALSO 🌈

kernel file ./include/linux/powercap.h, plus the whole powercap friend group:

• struct powercap_control_type(9)
• struct powercap_zone_ops(9)
• struct powercap_zone(9)
• struct powercap_zone_constraint_ops(9)
• struct powercap_zone_constraint(9)
• powercap_set_zone_data(9)
• powercap_get_zone_data(9)
• powercap_register_control_type(9)
• powercap_unregister_control_type(9)
• powercap_register_zone(9)
• powercap_unregister_zone(9)

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ngl if you're implementing a powercap control type, read the whole squad above before you touch anything. iykyk 😭🔥

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okay that's the whole page, mwah 💋 this little beauty lives in ./include/linux and was dated October 2026 — so yeah, future-coded and still slaying 🍓🧚⭐