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Use the new endpoint helpers to lookup the required bulk-in, bulk-out and interrupt-in endpoints for collapsed interfaces. Note that there is already a check verifying that there are exactly three endpoints so we'd still be bailing out if there's an unexpected endpoint type. Cc: Oliver Neukum <oneukum@suse.com> Signed-off-by: Johan Hovold <johan@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>