usb_deauthorize_device(9)

✨ usb_deauthorize_device ✨

Hey bestie! So this little cutie is from the Kernel API Manual — it's giving very much internal usbcore vibes, iykyk. Let's get into it 💅

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🌸 SYNOPSIS 🌸

int usb_deauthorize_device(struct usb_device *usb_dev);

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🎀 ARGUMENTS 🎀

• usb_dev — literally just a USB device, bestie. That's the whole thing. A USB device, periodt. 🦋

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💖 DESCRIPTION 💖

Okay so here's the tea: this function moves the USB device into a very basic state where interfaces are disabled and the device is in fact unconfigured and unusable. Like, it's not just offline — it's fully not doing anything, no cap. It's basically the "you're on a break" of USB device states 😭

And here's the important technical bit: we share a lock (that we have) with device_del, so we need to defer its call. That's just how it has to go down, fr fr. 🔒

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⭐ RETURN ⭐

It returns 0. That's it. That's the whole return value. Slay. 👑

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🌈 SEE ALSO 🌈

Okay bestie, grab a snack because this list is long and every single one matters:

• Kernel file ./drivers/usb/core/hub.c usb_hub_set_port_power(9)
• usb_hub_clear_tt_buffer(9)
• usb_remove_device(9)
• usb_set_device_state(9)
• usb_disconnect(9)
• usb_enumerate_device_otg(9)
• usb_enumerate_device(9)
• usb_new_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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💡 Quick vibe check: this page is coming at you from ./drivers/usb/core, dated October 2026, brought to you by the Kernel API Manual. Like, the future is now, bestie. ✨

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And that's the whole page, no skips, no cuts — every flag, every path, every reference is right here where you need it. You're gonna do great. Mwah! 🫶💜🎀