acpm_prepare_xfer(9)

✨ acpm_prepare_xfer ✨

okay so bestie, this one's from the Kernel API Manual — it's acpm_prepare_xfer(9) and it's literally the little pre-game ritual before your message gets yeeted into the TX queue. 🎀

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🌸 NAME 🌸

acpm_prepare_xfer — gets a transfer all dolled up and ready before the message gets written to the TX queue. no cap, that's the whole job. 💅

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🦋 SYNOPSIS 🦋

int acpm_prepare_xfer (struct acpm_chan *achan , const struct acpm_xfer
*xfer );

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💖 ARGUMENTS 💖

• achan — the ACPM channel info. it's giving "who am I and where am I going" energy. 🌈
• xfer — a reference to the transfer that's being prepared rn. this is the main character. 👑

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⭐ RETURN ⭐

0 on success, -errno otherwise. so like, zero means slay, negative errno means the vibe check failed. 😭

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🫶 SEE ALSO 🫶

• Kernel file ./drivers/firmware/samsung/exynos-acpm.c
• struct acpm_shmem(9)
• struct acpm_chan_shmem(9)
• struct acpm_queue(9)
• struct acpm_rx_data(9)
• struct acpm_chan(9)
• struct acpm_info(9)
• struct acpm_match_data(9)
• acpm_get_saved_rx(9)
• acpm_get_rx(9)
• acpm_dequeue_by_polling(9)
• acpm_wait_for_queue_slots(9)
• acpm_wait_for_message_response(9)
• acpm_do_xfer(9)
• acpm_set_xfer(9)
• acpm_chan_shmem_get_params(9)
• acpm_achan_alloc_cmds(9)
• acpm_free_mbox_chans(9)
• acpm_channels_init(9)
• acpm_handle_put(9)
• devm_acpm_release(9)
• acpm_get_by_node(9)
• devm_acpm_get_by_node(9)
• devm_acpm_get_by_phandle(9)

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💀 bestie fr fr read the SEE ALSO list, it's a whole friend group and they all show up to the function together.

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okay that's the whole page, mwah! 🍓 the source lives over in ./drivers/firmware/samsung and this little gem is dated October 2026 — go forth and prepare those transfers, icon. 🧚‍♀️💜