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This patch introduces a priority sysfs attribute to the USB Type-C alternate mode port interface. This new attribute allows user-space to configure the numeric priority of alternate modes managing their preferred order of operation. If a new priority value conflicts with an existing mode's priority, the priorities of the conflicting mode and all subsequent modes are automatically incremented to ensure uniqueness. Signed-off-by: Andrei Kuchynski <akuchynski@chromium.org> Reviewed-by: Benson Leung <bleung@chromium.org> Reviewed-by: Heikki Krogerus <heikki.krogerus@linux.intel.com> Link: https://patch.msgid.link/20260119131824.2529334-4-akuchynski@chromium.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>