macro_rules! stellaris_i2c_instance {
($sig_name:ident, $isr_name:ident, base = $base:expr) => { ... };
}Expand description
Declares a static Signal and a named fn() ISR bound to it, for
one physical Stellaris I2C instance’s completion interrupt. See
StellarisI2c::new for why this can’t just be a generic function
with an inline static.