od uses the following line to allow anyone in <group> to use wminput, and adds only the desired users to <group>:
<code>KERNEL=="uinput", GROUP="<group>"</code>
A uinput group can be created specifically for this purpose, or an existing group such as wheel can be used.
Key symbols can be assigned to wminput button ev... m/HOWTO_Use_Multimedia_Keys can help you set this up. An overview of the process described there:
