In the Linux kernel configuration, a fake LR-WPAN driver can be enabled and added to the kernel that will be compiled. Why would someone want a fake LR-WPAN driver? I assume it would be for debugging, but I do not want to only assume. The documentation and Google do not appear to have an answer.
From the description in the kernel configuration file (
This driver allows testing, debugging and experimenting with Linux's IEEE 802.15.4 subsystem, even if you have no corresponding hardware. Its source can also be a template to write a driver for some IEEE 802.15.4 driver. It is only of interest to programmers of IEEE 802.15.4-related tools and drivers.