ros-drivers/openni_launch — pull request #13 by tsparber (2013-12-12 18:37:15+00:00)
Title: Fix selection of a Xtion device by serial number

The openni driver expects the device_id parameter to be a string, but the serial numbers of a Xtion device includes only numbers.
In this case, if no type attribute is provided, the openni driver receives an empty device_id.
Adding the type="string" attribute fixes this problem.