mhi_driver_unregister(9)

💅 mhi_driver_unregister — like, the Kernel API Manual page, bestie

okay so real talk, this one's a shortie but she's important. It lives in the Kernel API Manual, section 9, and it's literally the "bye bye driver" function. No cap.

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🎀 NAME 🎀

mhi_driver_unregister — unregister a driver for mhi_devices

Yeah. That's it. That's the whole job. She takes your driver back out of the system, and honestly? iconic behaviour.

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✨ SYNOPSIS ✨

void mhi_driver_unregister (struct mhi_driver *mhi_drv );

notice how she returns void? like she doesn't owe you a status code, she just does the thing and dips. periodt.

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🫶 ARGUMENTS 🫶

• mhi_drv — the driver associated with the device. this is your driver struct, your little guy, the one you registered earlier. hand her over and she gets unregistered. 💅

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💜 SEE ALSO 💜

okay this list is long — like, unhinged long — but every single one of these is family, so we're listing them all. no skipping. ngl this is the whole MHI cinematic universe:

the kernel file itself:

• ./include/linux/mhi.h

enums:

• enum mhi_callback(9)
• enum mhi_flags(9)
• enum mhi_device_type(9)
• enum mhi_ch_type(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)

structs:

• struct mhi_buf(9)
• struct image_info(9)
• struct mhi_link_info(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)

controller life cycle girlies:

• mhi_alloc_controller(9)
• mhi_free_controller(9)
• mhi_register_controller(9)
• mhi_unregister_controller(9)

driver registration besties (the sibling of this very page):

• __mhi_driver_register(9)

state & notify:

• mhi_set_mhi_state(9)
• mhi_notify(9)
• mhi_get_free_desc_count(9)
• mhi_get_exec_env(9)
• mhi_get_mhi_state(9)

power up / power down (the whole situationship):

• 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)

rddm & reset energy:

• mhi_download_rddm_image(9)
• mhi_force_rddm_mode(9)
• mhi_soc_reset(9)

device refs:

• mhi_device_get_sync(9)
• mhi_device_put(9)

transfer szn:

• 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)

like I said. the whole friend group. 💖

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lowkey a reminder: this page is exactly what it says on the tin — no hidden options, no flags, no env vars, no exit statuses, no signals, no bugs section. just one function, one argument, and a lot of see-also links. don't go looking for drama where there isn't any. 🌸

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and that's the page!! sourced from ./include/linux, dated October 2026, from the mhi_driver_unregister(9) manual page — mwah, go unregister something responsibly 💅✨🦋