CONFIG_USB_DEFAULT_AUTHORIZATION_MODE: Default authorization mode for USB devices

General informations

The Linux kernel configuration item CONFIG_USB_DEFAULT_AUTHORIZATION_MODE:

• prompt: Default authorization mode for USB devices
• type: int
• depends on: CONFIG_USB
• defined in drivers/usb/core/Kconfig
• found in Linux kernels: 6.9-rc+HEAD

Help text

Select the default USB device authorization mode. Can be overridden with usbcore.authorized_default command line or module parameter.

This option allows you to choose whether USB devices that are connected to the system can be used by default, or if they are locked down.

With value 0 all connected USB devices with the exception of root hub require user space authorization before they can be used.

With value 1 (default) no user space authorization is required to use connected USB devices.

With value 2 all connected USB devices with exception of internal USB devices require user space authorization before they can be used. Note that in this mode the differentiation between internal and external USB devices relies on ACPI, and on systems without ACPI selecting value 2 is analogous to selecting value 0.

If unsure, keep the default value.

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The data is retrived from:

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• Linux Kernel Driver DataBase (LKDDb)

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