gaokun_ec_ucsi_write(9)

💖 gaokun_ec_ucsi_write — a kernel manual page, but make it cute

okay so bestie, welcome to gaokun_ec_ucsi_write(9) from the Kernel API Manual — yes it's a real section-9 page, yes we're doing this, and yes it slays ✨

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🌸 NAME 🌸

gaokun_ec_ucsi_write — literally just "Write UCSI data to EC" 💅 that's the whole vibe, no cap

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🦋 SYNOPSIS 🦋

int gaokun_ec_ucsi_write (struct gaokun_ec *ec , const u8
req[GAOKUN_UCSI_WRITE_SIZE] );

look at her, she's iconic, she's taking two arguments and she's gonna give you back an int 🎀

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🎀 ARGUMENTS 🎀

• ec — the gaokun_ec structure 🫶 that's your main character right there
• req — the sequence to request ✨ this is the actual content you're sending through

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🌈 DESCRIPTION 🌈

so what does she do? she writes CTRL and MSGO — and yes those are used by the UCSI subdriver, iykyk 🔥

that's it. that's the description. short and perfect, honestly obsessed 😭

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⭐ RETURN ⭐

• 0 on success 🎉 (slay)
• a negative error code when it goes wrong 💀 (not slay, but we respect the honesty)

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👑 SEE ALSO 👑

okay this is the friend group, all linked together, all valid, let's go through the roster 📋

• Kernel file ./drivers/platform/arm64/huawei-gaokun-ec.c 🧚 — go read her
• gaokun_ec_read(9)
• gaokun_ec_write(9)
• gaokun_ec_register_notify(9)
• gaokun_ec_unregister_notify(9)
• gaokun_ec_psy_multi_read(9)
• gaokun_ec_psy_get_smart_charge(9)
• gaokun_ec_psy_set_smart_charge(9)
• gaokun_ec_psy_get_smart_charge_enable(9)
• gaokun_ec_psy_set_smart_charge_enable(9)
• gaokun_ec_ucsi_read(9)
• gaokun_ec_ucsi_get_reg(9)
• gaokun_ec_ucsi_pan_ack(9)

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💡 friendly reminder bestie: every single one of those is a real page, so go click through them all, no skipping 🫶

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and that's the whole page!! mwah 💋 this lil diva lives in ./drivers/platform/arm64 and the version is dated October 2026 — so like, she's from the future, main character energy fr fr 🦋✨💜