acpm_get_saved_rx(9)

💖 NAME 💖

okay so bestie, this is the acpm_get_saved_rx(9) page in the Kernel API Manual, and the whole assignment is: get the response if it was already saved. That’s the vibe. 💅

✨ SYNOPSIS ✨

the signature, verbatim, no edits, no cap:

void acpm_get_saved_rx (struct acpm_chan *achan , const struct acpm_xfer
       *xfer , u32 tx_seqnum );

it returns void, so it’s not handing you a return value — it’s just doing its little saved-response thing. 🫶

🎀 ARGUMENTS 🎀

• achan — the ACPM channel info. literally the channel info we’re working with. 💖
• xfer — a reference to the transfer you want the response for. the transfer in question, bestie. 🦋
• tx_seqnum — the xfer’s TX sequence number. yes, that exact sequence number. ✨

🦋 SEE ALSO 🦋

if you wanna go deeper, the kernel file is ./drivers/firmware/samsung/exynos-acpm.c, and these are the linked besties:

• 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_rx(9)
• acpm_dequeue_by_polling(9)
• acpm_wait_for_queue_slots(9)
• acpm_prepare_xfer(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)

mwah 💋 — this cutie came from source/version ./drivers/firmware/samsung, dated October 2026. 🫶