Macro sodaq_one::define_pins

macro_rules! define_pins {
    ($ (# [$ topattr : meta]) * struct $ Type : ident , target_device : $
 target_device : ident , $
 ($ (# [$ attr : meta]) * pin $ name : ident = $ pin_ident : ident) , + ,) => { ... };
}

This macro is a helper for defining a Pins type in a board support crate. This type is used to provide more meaningful aliases for the various GPIO pins for a given board.