mhi_unprepare_from_transfer(9)

💖 mhi_unprepare_from_transfer(9) — Kernel API Manual 💖

okay so bestie, welcome to the page for mhi_unprepare_from_transfer(9) from the Kernel API Manual. We’re doing a whole reset-and-cleanup situation here, and yes it’s giving “wrap up the transfer channels” energy. 🫶

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🌸 NAME 🌸

mhi_unprepare_from_transfer — reset the UL and DL channels for data transfer. It issues the RESET channel command and lets the device clean up the context so no incoming transfers are seen on the host. It also frees memory associated with the context on the host. If the device is unresponsive, it only performs a host-side clean-up. Important vibe check: channels can be reset only if both the host and device execution environments match and the channels are in an ENABLED, STOPPED, or SUSPENDED state. No cap. 💅

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✨ SYNOPSIS ✨

Here’s the signature, literally exactly as it is:

void mhi_unprepare_from_transfer (struct mhi_device *mhi_dev );

That’s the whole call, and it returns void — so no return value to obsess over. 💖

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🦋 ARGUMENTS 🦋

• mhi_dev — the device associated with the channels. That’s the one we’re resetting and cleaning up for. 🎀

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🔥 SEE ALSO 🔥

The kernel file to peek at is ./include/linux/mhi.h, and here’s the full friend group of references — every single one, because we don’t skip the squad:

• Kernel file ./include/linux/mhi.h
• 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_result(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_queue_buf(9)
• mhi_queue_skb(9)
• mhi_queue_is_full(9)
• mhi_get_channel_doorbell_offset(9)

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🎀 that’s the tea! This page came from source/version ./include/linux, dated October 2026, and it’s the mhi_unprepare_from_transfer(9) page. bye bestie, go reset those channels responsibly! 🫶💜