STRUCT MHI_RESULT(9)

💅 struct mhi_result(9) — Completed buffer information

okay so bestie, this is a page out of the Kernel API Manual (yes, that one), and it's literally just one little struct that tells you what happened to a buffer after it finished doing its thing. She's short, she's iconic, she's giving "receipts after the transaction." Let's get into it 🫶

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✨ NAME ✨

struct mhi_result — completed buffer information 📦

Like, the whole personality is: "here's what the buffer looked like when it was done." No cap.

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🌸 SYNOPSIS 🌸

struct mhi_result {
    void *buf_addr;
    size_t bytes_xferd;
    enum dma_data_direction dir;
    int transaction_status;
 };

Look at her. Four fields. Immaculate. 💅

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🎀 Members 🎀

• buf_addr — the address of the data buffer. literally where the data lives, bestie 📍
• bytes_xferd — the # of bytes transferred. yeah it's spelled like that, don't come for her 🙈
• dir — the channel direction. which way the vibe is flowing 🦋
• transaction_status — the status of the last transaction. did it slay or did it flop, this field knows 🔥

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🌈 SEE ALSO 🌈

So there's a whole friend group, and honestly? The group chat is popping off. Start with the kernel file ./include/linux/mhi.h, then meet the rest of the squad:

• enum mhi_callback(9)
• enum mhi_flags(9)
• enum mhi_device_type(9)
• enum mhi_ch_type(9)
• struct mhi_buf(9)
• struct image_info(9)
• struct mhi_link_info(9)
• enum mhi_ee_type(9)
• enum mhi_state(9)
• enum mhi_ch_ee_mask(9)
• enum mhi_er_data_type(9)
• enum mhi_db_brst_mode(9)
• struct mhi_channel_config(9)
• struct mhi_event_config(9)
• struct mhi_controller_config(9)
• struct mhi_controller(9)
• struct mhi_device(9)
• struct mhi_driver(9)
• mhi_alloc_controller(9)
• mhi_free_controller(9)
• mhi_register_controller(9)
• mhi_unregister_controller(9)
• __mhi_driver_register(9)
• mhi_driver_unregister(9)
• mhi_set_mhi_state(9)
• mhi_notify(9)
• mhi_get_free_desc_count(9)
• mhi_prepare_for_power_up(9)
• mhi_async_power_up(9)
• mhi_sync_power_up(9)
• mhi_power_down(9)
• mhi_power_down_keep_dev(9)
• mhi_unprepare_after_power_down(9)
• mhi_pm_suspend(9)
• mhi_pm_resume(9)
• mhi_pm_resume_force(9)
• mhi_download_rddm_image(9)
• mhi_force_rddm_mode(9)
• mhi_get_exec_env(9)
• mhi_get_mhi_state(9)
• mhi_soc_reset(9)
• mhi_device_get_sync(9)
• mhi_device_put(9)
• mhi_prepare_for_transfer(9)
• mhi_unprepare_from_transfer(9)
• mhi_queue_buf(9)
• mhi_queue_skb(9)
• mhi_queue_is_full(9)
• mhi_get_channel_doorbell_offset(9)

Forty-nine whole entries and not a single one skipped, because we do NOT leave members of the squad out of the tag 💜

ngl if you're reading this at 3am trying to debug a transfer, hydrate, blink, and go read ./include/linux/mhi.h. the source is right there and it's free 🍓

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✨ that's the whole page, bestie — short, sweet, and fully documented ✨

Cute little sign-off: this page lives out of ./include/linux and it's dated October 2026 (time-traveling kernel docs, we love to see it 🧚), filed under struct mhi_result(9). byeeee 💖🎀🦋