Context:
Ourgpio-cdev crate only supports GPIO uAPI v1, which has been deprecated in the kernel. There is a new crategpiocdev which does support it in newer kernels.

Preliminary analysis of switching to the newer gpiocdev in no particular order:

• Pro:
  • Supports GPIO uAPI v2 as well as v1 which is deprecated.
  • More active project.
  • Author is the author of the API in the Linux kernel.
  • gpiosim support.
• Cons:
  • Porting effort.
  • Adds many dependencies.
  • Breaking change.
  • Outside of the rust-embedded org.

Seerust-embedded/gpio-cdev#68