Function rpi_info::load_cpuinfo

pub fn load_cpuinfo() -> Result<Option<RaspberryPiInfo>>

Load RPi info from /proc/cpuinfo.

The outer Result is for any i/o errors (more likely a permission issue than any other error for a procfs file).

The inner Option will be None if the contents of /proc/cpuinfo was not recognized as any known Raspberry Pi model.