STRUCT SCMI_BASE_INFO(9)

💖 struct scmi_base_info(9) 💖

okay bestie, welcome to the Kernel API Manual entry for struct scmi_base_info — the version-information structure, aka the little glow-up card that tells you what this SCMI thing actually is. no cap, it's giving "hi my name is and here's my whole personality in six fields." 🎀

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✨ SYNOPSIS ✨

struct scmi_base_info {
    u16 major_ver;
    u16 minor_ver;
    u8 num_protocols;
    u8 num_agents;
    u32 impl_ver;
    char vendor_id[SCMI_SHORT_NAME_MAX_SIZE];
    char sub_vendor_id[SCMI_SHORT_NAME_MAX_SIZE];
 };

literally the whole struct, copied with love and zero typos 🫶

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🌸 Members 🌸

💅 major_ver

The major ABI version. heads up though — if this one changes, that implies risk of a backward compatibility break. so like, not a casual little tweak, it's a whole era shift 😭

🦋 minor_ver

The minor ABI version. a change here implies a new feature got added, or a compatible change in the ABI. the chill one. the low-stakes one. we love her 💖

⭐ num_protocols

The number of protocols that are implemented — and psa, this excludes the base protocol. don't count base, she doesn't want to be counted 🙈

🔥 num_agents

The number of agents in the system. that's it, that's the field. iconic brevity 👑

🌈 impl_ver

A vendor-specific implementation version. every vendor does their own little thing here, iykyk 💫

🍓 vendor_id

A vendor identifier (Null terminated ASCII string). so remember the null terminator bestie, it matters 🧚

💜 sub_vendor_id

A sub-vendor identifier (Null terminated ASCII string). yes there's a sub-vendor too, the lore goes deep 🌀

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👀 SEE ALSO 👀

Kernel file ./include/linux/scmi_protocol.h:

• struct scmi_clk_proto_ops(9)
• struct scmi_perf_proto_ops(9)
• struct scmi_power_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)

like, the entire friend group. go say hi 💕

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ngl this one's a read-only info struct — you're here to look, not to scribble on it. 🫶

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okay that's the whole page!! sourced straight from ./include/linux, dated October 2026, and yes she ate 💅✨ no crumbs. mwah, go read some more kernel headers, love u 🎀💖