`defmt-rtt`: Document `static TAKEN`
@@ -35,6 +35,7 @@ const SIZE: usize = 1024;
#[defmt::global_logger]
struct Logger;
+/// Global logger lock.
static TAKEN: AtomicBool = AtomicBool::new(false);
static INTERRUPTS_ACTIVE: AtomicBool = AtomicBool::new(false);
static mut ENCODER: defmt::Encoder = defmt::Encoder::new();
