STRUCT MHI_EP_DEVICE(9)

💖 struct mhi_ep_device(9) — the Kernel API Manual, bestie edition 💖

okay so this is a page from the Kernel API Manual and it's all about struct mhi_ep_device — literally the struct that represents an MHI Endpoint device that binds to channels or is associated with controllers. yes it's a mouthful, no I'm not gonna shorten it, it's iconic. 🎀

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🌸 NAME 🌸

struct mhi_ep_device — the structure that represents an MHI Endpoint device that binds to channels or is associated with controllers. both. she does both. main character energy fr fr 💅

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✨ SYNOPSIS ✨

struct mhi_ep_device {
    struct device dev;
    struct mhi_ep_cntrl *mhi_cntrl;
    const struct mhi_device_id *id;
    const char *name;
    struct mhi_ep_chan *ul_chan;
    struct mhi_ep_chan *dl_chan;
    enum mhi_device_type dev_type;
};

not me pasting the whole struct so you can see her in full glam 👑 copy it exactly, don't get creative with the field names, I'm begging 🙏

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🦋 Members 🦋

time for the member-by-member vibe check, let's go:

• dev — the driver model device node for the MHI Endpoint device. that's her official paperwork, her government name, her whole identity in the driver model 🫶
• mhi_cntrl — the controller the device belongs to. like, whose group chat is she in. that one 💬
• id — pointer to the MHI Endpoint device ID struct. her ID card, lowkey 🪪
• name — name of the associated MHI Endpoint device. yes, a const char *. yes, she's named. slay ✨
• ul_chan — the UL (from host to endpoint) channel for the device. UL is the upload-ish direction, host ➡️ endpoint, no cap 📤
• dl_chan — the DL (from endpoint to host) channel for the device. and DL is the other way, endpoint ➡️ host 🔁
• dev_type — the MHI device type. filed under enum mhi_device_type, obviously 💅

ok tiny note bestie: ul_chan and dl_chan are both struct mhi_ep_chan * — don't swap the directions in your head, that's the whole point of having two 🙈

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🔥 SEE ALSO 🔥

go read these next, they're all in the kernel file ./include/linux/mhi_ep.h and honestly the whole crew is kind of a friend group at this point:

• struct mhi_ep_channel_config(9)
• struct mhi_ep_cntrl_config(9)
• struct mhi_ep_db_info(9)
• struct mhi_ep_buf_info(9)
• struct mhi_ep_cntrl(9)
• struct mhi_ep_driver(9)
• __mhi_ep_driver_register(9)
• mhi_ep_driver_unregister(9)
• mhi_ep_register_controller(9)
• mhi_ep_unregister_controller(9)
• mhi_ep_power_up(9)
• mhi_ep_power_down(9)
• mhi_ep_queue_is_empty(9)
• mhi_ep_queue_skb(9)

like genuinely read them, they ate and left no crumbs 🔥👑

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and that's the page!! 💖 this one lives over in ./include/linux, dated October 2026, and it's filed under struct mhi_ep_device(9) in the Kernel API Manual. mwah, go forth and bind those channels bestie 🌈⭐🧚💜