Type Definition uem_reader::reader::UemReader

pub type UemReader = Arc<Mutex<dyn UemReaderInternal>>;

General reader type using Arc standard type

Trait Implementations

impl UemCommandsTrait for UemReader

fn commands(&mut self) -> UemCommands<'_>

impl UemReaderInternal for UemReader

fn open(&mut self) -> UemResult

Open interface with the reader

Example

if uem_reader.open().is_err() {
    return;
}

fn close(&mut self) -> Result<(), UemError>

Close opened reader interface

Example

if uem_reader.close().is_err() {
    return;
};

fn send(&mut self, command: &[u8]) -> UemResultVec

Send a command to a reader and receive response

Arguments

• command - a vector of command bytes

Returns

Ok(()) on success, otherwise returns an error.

Example

// Beep 1 time using command byte vector
if uem_reader.send(&vec![0x05_u8, 0x01_u8]).is_err() {
    return;
}