tm4c_hal
macro_rules! gpio_macro { ($chip_crate:ident, $GPIOX:ident, $gpiox:ident, $iopd:ident, $PXx:ident, [ $($PXi:ident: ($pxi:ident, $i:expr, $MODE:ty),)+ ]) => { ... }; }
! An internal macro to implement the GPIO functionality for each port