usb_remove_device(9)

✨ usb_remove_device(9) ✨

okay so bestie, welcome to the Kernel API Manual — yes, we're in the kernel section, grab a snack 🍓 — and today's main character is usb_remove_device. she's short, she's sweet, she disables a port. periodt. 💅

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💖 NAME 💖

usb_remove_device — disable a device's port on its parent hub 🫶

like, she doesn't unplug anything for you, she just makes the port say "no ❤️" and lets the hub handle the rest.

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🌸 SYNOPSIS 🌸

int usb_remove_device (struct usb_device *udev );

that's the whole signature, no cap. one argument, one int coming back at you.

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🎀 ARGUMENTS 🎀

• udev — the device that's getting disabled and removed 🙈 this is the one whose port is about to get shut down on the parent hub.

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🦋 CONTEXT 🦋

vibe check before you call this, bestie: udev locked, and it must be able to sleep 😴

fr fr, read that twice — it's not one of those "call me from anywhere" functions. lock udev first, and don't you dare call it from a context that can't sleep.

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🔥 DESCRIPTION 🔥

so here's the tea ☕ — after udev's port has been disabled, hub_wq gets notified, and it'll see that the device has been disconnected. that's the whole point, that's the slay.

and when the device is physically unplugged and something else gets plugged in? the events will be received and processed normally 💫 so everything just keeps flowing, no drama, no leftovers.

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🌈 RETURN 🌈

• 0 if it worked ✨ iconic, no notes
• a negative error code otherwise 😭 (yes, negative — that's your red flag)

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👑 SEE ALSO 👑

okay this is the friend group, they all live in the kernel file ./drivers/usb/core/hub.c — go say hi 💜

• usb_hub_set_port_power(9)
• usb_hub_clear_tt_buffer(9)
• usb_set_device_state(9)
• usb_disconnect(9)
• usb_enumerate_device_otg(9)
• usb_enumerate_device(9)
• usb_new_device(9)
• usb_deauthorize_device(9)
• get_port_ssp_rate(9)
• usb_root_hub_lost_power(9)
• hub_hc_release_resources(9)
• usb_reset_and_verify_device(9)
• usb_reset_device(9)
• usb_queue_reset_device(9)
• usb_hub_find_child(9)
• usb_get_hub_port_acpi_handle(9)

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and that's the page, bestie 🧚✨ this one came out of ./drivers/usb/core in October 2026 — go drink some water and lock your udev 💖🎀