rio_mport_send_doorbell(9)

💖 rio_mport_send_doorbell — the Kernel API Manual glow-up ✨

okay so bestie, welcome to rio_mport_send_doorbell</p> from the Kernel API Manual 🎀 this one's a lil function that literally just rings a doorbell at a RapidIO device. short and sweet, main character energy, no cap 💅

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🌸 NAME 🌸

rio_mport_send_doorbell</p> — bestie, it sends a doorbell message 🔔✨ that's the whole vibe.

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🦋 SYNOPSIS 🦋

int rio_mport_send_doorbell (struct rio_mport *mport , u16 destid , u16
data );

like, it returns an int, takes three things, and yes the data argument is chillin' on its own line up there — we don't question the formatting, we respect it 🫶

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✨ ARGUMENTS ✨

• mport — the RIO master port 💜 this is your main character struct, the port doing the sending.
• destid — the RIO device destination ID 🎯 aka who's getting the doorbell.
• data — the doorbell message data 📦 this is the actual info you're ringing about.

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🔥 DESCRIPTION 🔥

So basically: you send a doorbell message to a RIO device 🔔💫 and the doorbell message has a 16-bit info field, and that info field is provided by the data argument. that's it. that's the function. iconic, lowkey, ate 🌈

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🧚 SEE ALSO 🧚

• the kernel file ./drivers/rapidio/rio-access.c — go read it, iykyk 📖
• RIO_LOP_READ(9) ⭐
• RIO_LOP_WRITE(9) ⭐
• RIO_OP_READ(9) ⭐
• RIO_OP_WRITE(9) ⭐

like, all the read/write besties in one place, obsessed 💅

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ngl bestie, if you're poking around RapidIO stuff, these are literally your girls 🫶 no gatekeeping here.

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and that's the whole page, fr fr 💖 this one lives under ./drivers/rapidio in the Kernel API Manual, dated October 2026 — mwah, slay, see you in the next manpage 🎀✨🦋