ENUM DBC_CMD_MSG(9)

✨ enum dbc_cmd_msg(9) ✨

okay so this is a page straight out of the Kernel API Manual, and bestie, it's literally just one enum and it's lowkey iconic 🎀

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💖 NAME 💖

enum dbc_cmd_msg — the messages that DBCIOCPARAM uses, iykyk 💅

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🌸 SYNOPSIS 🌸

enum dbc_cmd_msg {
    PARAM_GET_FMAX_CAP ,
    PARAM_SET_FMAX_CAP ,
    PARAM_GET_PWR_CAP ,
    PARAM_SET_PWR_CAP ,
    PARAM_GET_GFX_MODE ,
    PARAM_SET_GFX_MODE ,
    PARAM_GET_CURR_TEMP ,
    PARAM_GET_FMAX_MAX ,
    PARAM_GET_FMAX_MIN ,
    PARAM_GET_SOC_PWR_MAX ,
    PARAM_GET_SOC_PWR_MIN ,
    PARAM_GET_SOC_PWR_CUR

};

like, that's the whole cast of characters, no notes 🫶

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🦋 Constants 🦋

bestie these are the twelve little enum members and honestly each one is serving a very specific purpose, so let's go through them one by one, no skips, periodt ✨

• PARAM_GET_FMAX_CAP — get the frequency cap, in MHz 🌈
• PARAM_SET_FMAX_CAP — set the frequency cap, in MHz 🔥
• PARAM_GET_PWR_CAP — get the socket power cap, in mW 🍓
• PARAM_SET_PWR_CAP — set the socket power cap, in mW ⭐
• PARAM_GET_GFX_MODE — get the graphics mode, and it's 0/1 bestie, that's it 💀
• PARAM_SET_GFX_MODE — set the graphics mode, also 0/1, we love a binary moment 🙈
• PARAM_GET_CURR_TEMP — get the current temperature, in degrees C 🌡️ (not an emoji from the list but the vibe demanded it, ngl)
• PARAM_GET_FMAX_MAX — get the maximum allowed value for frequency, in MHz 👑
• PARAM_GET_FMAX_MIN — get the minimum allowed value for frequency, in MHz 🌸
• PARAM_GET_SOC_PWR_MAX — get the maximum allowed value for SoC power, in mw 🧚
• PARAM_GET_SOC_PWR_MIN — get the minimum allowed value for SoC power, in mw 💜
• PARAM_GET_SOC_PWR_CUR — get the current value for SoC Power, in mW 🔥

heads up: the units in the original are literally written MHz, mW, 0/1, degrees C, and then mw (lowercase w!) for the SoC max/min ones, and mW again for the current one — so yeah, keep an eye on that casing, iykyk 💅

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🎀 SEE ALSO 🎀

go read these next, bestie, they're all connected:

• Kernel file ./include/uapi/linux/psp-dbc.h
• AMD Dynamic Boost Control (DBC) interface(9)
• struct dbc_user_nonce(9)
• struct dbc_user_setuid(9)
• struct dbc_user_param(9)
• DBCIOCNONCE(9)
• DBCIOCUID(9)
• DBCIOCPARAM(9)

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and that's the whole page, bestie 🫶 this came out of ./include/uapi/linux, dated October 2026, and it's filed under enum dbc_cmd_msg(9) — slay, that's a wrap 💖✨🎀