#[error("given callsign is {0} characters long; maximum is 9")]
CallsignTooLong(usize),
+
+ #[error("error during soundcard initialisation")]
+ SoundcardInit,
+
+ #[error("unable to locate sound card '{0}' - is it in use?")]
+ SoundcardNotFound(String),
+
+ #[error("unable to set up RTL-SDR receiver")]
+ RtlSdrInit,
}