pub trait NotGclkIo: GclkSourceId<Resource = ()> { }Expand description
Type-level enum of GclkSourceId types that are not a GclkIo
The datasheet notes that a Gclk can use a GPIO Pin as either input
or output, but not both. Stated differently, you cannot create a GclkOut
from a Gclk where the GclkSourceId is a PinId.
This trait acts as a type-level enum narrowing GclkSourceId to exclude
any types which implement GclkIo.