__async_tx_find_channel(9)

💅 __async_tx_find_channel (9) — from the Kernel API Manual, bestie 🎀

okay so real talk, this one is short but it's lowkey the main character of the async_tx directory. it lives in ./crypto/async_tx and it's giving "let me find you a channel, or honestly just do it yourself." iykyk.

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✨ NAME ✨

__async_tx_find_channel — find a channel to carry out the operation or let the transaction execute synchronously

like, that's literally the whole job. either we find a channel to carry the op, or we let the transaction just execute synchronously. no cap. 🦋

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🌸 SYNOPSIS 🌸

struct dma_chan * __async_tx_find_channel (struct async_submit_ctl
*submit , enum dma_transaction_type tx_type );

copy it exactly, bestie, don't be out here retyping it from memory 💀 it returns a struct dma_chan *, periodt.

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🎀 ARGUMENTS 🎀

• submit — transaction dependency and submission modifiers. yeah, all the dependency info and submission modifier vibes ride in through this one 🫶
• tx_type — transaction type. it's an enum dma_transaction_type, and it's literally just telling you what kind of transaction we're dealing with ✨

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🔥 SEE ALSO 🔥

• Kernel file ./crypto/async_tx/async_tx.c — go read the source, it's iconic 👑
• async_tx_channel_switch(9)
• enum submit_disposition(9)
• async_trigger_callback(9)
• async_tx_quiesce(9)

also the directory itself, ./crypto/async_tx, is where all of this lives 🧚

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ngl there's not a ton of drama here — no flags, no return-value essay, no exit statuses. just a function, two arguments, and a little friend group of related calls. so if you were bracing for a 40-option wall of text... not today, bestie 💖

and that's a wrap! this gem is from ./crypto/async_tx, dated October 2026 — slay, see you in the next page 🌈💜💅