The following feature is listed in release notes of Linux 2.8b3:
Support MXM/SODIMM Pin Numbers to Get/Set GPIOs
Allow using MXM or SODIMM pin numbers to get or set GPIOs. This also allows for easier code porting from one to another Toradex module.
How this feature can be used? Specifically, how GPIOs can be exported/read/written by their SODIMM pin numbers in userspace (e.g. Linux shell)?