qmp_send(9)

💌 qmp_send(9) — like, the AOSS text-message API, bestie

okay so this is qmp_send, a section 9 page from the Kernel API Manual, and honestly? it's giving "short and iconic." it does exactly one thing and it does it slayfully, so let's get into it 🫶

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✨ NAME ✨

qmp_send — send a message to the AOSS 💅

like, that's it. that's the whole job. she sends, the AOSS replies. main character energy fr.

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🌸 SYNOPSIS 🌸

int  qmp_send (struct qmp *qmp , const char *fmt , ... );

copy that exactly, don't be cute with the spacing, the compiler does NOT find it funny 😭

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🎀 ARGUMENTS 🎀

• qmp — your qmp context. the vibe-holder. the whole thing lives in here 🦋
• fmt — the format string for the message you're sending out. printf-coded, lowkey 👑
• ... — the arguments for the format string. the lil fill-in-the-blanks, no cap ✨

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🔥 DESCRIPTION 🔥

so what actually happens: you transmit your message to the AOSS, and then you wait for the AOSS to acknowledge it. not "fire and forget," not "send it and run" — you wait, bestie. it's a whole handshake moment 🤝

⚠️ the one rule that will ruin your day: data must not be longer than the mailbox size. not a suggestion, not a vibe check you can fail casually — keep it in bounds or it's over 💀

access is synchronized by this implementation, so you don't have to build your own locking situation. she handles it. one less thing, periodt 🧚

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⭐ RETURN ⭐

• 0 on success 🎉 (slay, it worked)
• negative errno on failure 😭 (it did not, in fact, work)

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🌈 SEE ALSO 🌈

• Kernel file ./drivers/soc/qcom/qcom_aoss.c
• struct qmp(9)
• qmp_get(9)
• qmp_put(9)

go read the friends, iykyk 📚💖

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okay that's the whole page, you ate it up 💅 — this one lives in ./drivers/soc/qcom, it's dated October 2026, and it's qmp_send(9) forever and always. byeeee 🦋🎀💜