trace_remote_register(9)

✨ trace_remote_register(9) — like, the kernel API manual energy but make it make sense ✨

okay bestie, welcome to the trace_remote_register(9) glow-up 💅 this one's from the Kernel API Manual and it's literally about letting something outside the kernel slide its events into a Tracefs ring buffer. no cap, it's iconic. let's get into it 🫶

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🌸 NAME 🌸

trace_remote_register — register a Tracefs remote ✨

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🦋 SYNOPSIS 🦋

int trace_remote_register (const char *name , struct
       trace_remote_callbacks *cbs , void *priv , struct remote_event *events ,
       size_t nr_events );

that's the whole signature, bestie — every param, exactly as written, no edits, periodt 🎀

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💜 ARGUMENTS 💜

• name — the name of the remote, and it's what gets used for the Tracefs remotes/ directory. so like, pick a good one 👑
• cbs — the set of callbacks used to control the remote. this is the whole control panel, basically 🎛️
• priv — private data, and it gets passed to each callback from cbs. your little stash of secrets 🍓
• events — array of events. heads up: remote_event.name and remote_event.id must be filled by the caller. that's on you, not on the kernel 😭
• nr_events — number of events in the events array. just count 'em fr fr 🔢

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🌈 DESCRIPTION 🌈

so a trace remote is this entity that lives outside of the kernel — most likely firmware or a hypervisor — and it's capable of writing events into a Tracefs compatible ring buffer. the way that works is: the kernel then acts as a reader. it's giving main character kernel, honestly 📖✨

and once you've registered your remote, you'll find it chilling under the Tracefs directory:

remotes/<name>

no cap, that's where it lives 💖

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⭐ RETURN ⭐

0 on success, negative error code on failure. that's it, that's the vibe check ✅💀

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🧚 SEE ALSO 🧚

• Kernel file ./kernel/trace/trace_remote.c
• trace_remote_free_buffer(9)
• trace_remote_alloc_buffer(9)

go read those too, iykyk 🦋

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lowkey reminder bestie: remote_event.name and remote_event.id are your job to fill in before you call this. don't come crying to me if the array's half-empty 🙈

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mwah, that's the page 💜 it ships from ./kernel/trace, dated October 2026 — catch you in the next manpage, bestie 🎀🔥👑