Type Alias SubGhzIsFrequencyValid 

pub type SubGhzIsFrequencyValid = Option<unsafe extern "C" fn(frequency: u32) -> bool>;

Aliased Type

pub enum SubGhzIsFrequencyValid {
    None,
    Some(unsafe extern "C" fn(u32) -> bool),
}

Variants

None

No value.

Some(unsafe extern "C" fn(u32) -> bool)

Some value of type T.