STRUCT WILCO_KEYBOARD_LEDS_MSG(9)

💖 struct wilco_keyboard_leds_msg(9) 💖

okay so bestie, welcome to the Kernel API Manual ✨ today we're looking at struct wilco_keyboard_leds_msg and honestly? it's giving "little struct that could" 🎀

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🌸 NAME 🌸

struct wilco_keyboard_leds_msg — the message that goes to (and comes back from) the EC for controlling your keyboard LEDs 💡✨ literally the little note you pass the embedded controller so your keyboard can glow.

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✨ SYNOPSIS ✨

struct wilco_keyboard_leds_msg {
    u8 command;
    u8 status;
    u8 subcmd;
    u8 reserved3;
    u8 mode;
    u8 reserved5to8[4];
    u8 percent;
    u8 reserved10to15[6];
 };

no cap, that's the whole shape of it 🫶

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🦋 Members 🦋

let me walk you through every single field, because we do NOT skip members in this house 💅

• command — always WILCO_EC_COMMAND_KBBL. like, always. every time. don't be creative with it 🙈
• status — the EC sets this one for you: 0 on success, 0xFF on failure. so when it says 0xFF it's lowkey telling you something went wrong 😭
• subcmd — one of enum wilco_kbbl_subcommand. pick from the menu, bestie 🍓
• reserved3 — should be 0. that's it. that's the whole job 🎀
• mode — bit flags for the used mode, and we want to use WILCO_KBBL_MODE_FLAG_PWM. that's the vibe we're going for 💫
• reserved5to8 — should be 0. four whole bytes of "please leave me alone" 🌸
• percent — brightness in 0-100. only meaningful in PWM mode, so don't come at it expecting magic in other modes ⚡
• reserved10to15 — should be 0. six bytes of pure "nothing to see here" energy 💜

omg quick vibe check: those reserved* fields are not optional decoration — the manpage says should be 0, so zero them out, okay? 🔥

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👑 SEE ALSO 👑

• Kernel file ./drivers/platform/chrome/wilco_ec/keyboard_leds.c 📁
• kbbl_init(9) 🧚

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and that's the tea ☕ bestie, go make those LEDs behave 💖

sign-off szn: this page came from ./drivers/platform/chrome/wilc... and the date on it is October 2026, filed under struct wilco...ard_leds_msg(9) — so like, screenshot it before the header truncates even harder 😭🫶 slay, bye! 💅✨