STRUCT SCMI_POWER_PROTO_OPS(9)

👑 struct scmi_power_proto_ops(9) 💅

okay so bestie, welcome to the Kernel API Manual entry for struct scmi_power_proto_ops — and yes, that's the whole title, we're being extra official today ✨

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🌸 NAME 🌸

struct scmi_power_proto_ops — literally the struct that represents all the various operations provided by the SCMI Power Protocol 🫶 like that's its whole job and it ate

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✨ SYNOPSIS ✨

struct scmi_power_proto_ops {
    int (*num_domains_get)(const struct scmi_protocol_handle *ph);
    const char *(*name_get)(const struct scmi_protocol_handle *ph, u32 domain);
  #define SCMI_POWER_STATE_TYPE_SHIFT     30;
  #define SCMI_POWER_STATE_ID_MASK        (BIT(28) - 1);
  #define SCMI_POWER_STATE_PARAM(type, id)         ((((type) & BIT(0)) << SCMI_POWER_STATE_TYPE_SHIFT) |                 ((id) & SCMI_POWER_STATE_ID_MASK));
  #define SCMI_POWER_STATE_GENERIC_ON     SCMI_POWER_STATE_PARAM(0, 0);
  #define SCMI_POWER_STATE_GENERIC_OFF    SCMI_POWER_STATE_PARAM(1, 0);
    int (*state_set)(const struct scmi_protocol_handle *ph, u32 domain, u32 state);
    int (*state_get)(const struct scmi_protocol_handle *ph, u32 domain, u32 *state);
 };

no cap, that's the whole lineup 👑 the function pointers are the main characters, and the #defines are the little supporting cast that make the state math work 💖

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🎀 Members 🎀

• num_domains_get — get the count of power domains provided by SCMI 🔢 like, how many power domains are we even working with, bestie
• name_get — gets the name of a power domain 🏷️ every domain deserves a name, honestly iconic
• state_set — sets the power state of a power domain 🔥 you're the one in charge now
• state_get — gets the power state of a power domain 👀 just peeking, no touching

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🦋 SEE ALSO 🦋

Kernel file ./include/linux/scmi_protocol.h — and the whole friend group, fr fr:

• struct scmi_base_info(9)
• struct scmi_clk_proto_ops(9)
• struct scmi_perf_proto_ops(9)
• struct scmi_sensor_reading(9)
• struct scmi_range_attrs(9)
• struct scmi_sensor_axis_info(9)
• struct scmi_sensor_intervals_info(9)
• struct scmi_sensor_info(9)
• struct scmi_sensor_proto_ops(9)
• struct scmi_reset_proto_ops(9)
• struct scmi_voltage_info(9)
• struct scmi_voltage_proto_ops(9)
• struct scmi_powercap_info(9)
• struct scmi_powercap_proto_ops(9)
• struct scmi_pinctrl_proto_ops(9)
• struct scmi_notify_ops(9)
• struct scmi_handle(9)
• module_scmi_driver(9)
• module_scmi_protocol(9)

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💜 that's the whole page, bestie 💜

signing off from ./include/linux, dated October 2026, in the struct scmi_power_proto_ops(9) era 🎀 iykyk — go power-cycle something responsibly 🌈⭐