DeviceFromPath takes the path to a device and its cgroup_permissions (which cannot be easily queried) to look up the information about a linux device and returns that information as a Device struct.

GetDevices recursively traverses a directory specified by path and returns all devices found there.

HostDevices returns all devices that can be found under /dev directory.

or 'u'.

ErrNotADevice denotes that a file is not a valid linux device.

Permissions is a cgroupv1-style string to represent device access.