mfrc522 0.8.0

A platform agnostic driver to interface the MFRC522 (RFID reader/writer)
Documentation 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57

/// Error type used in this crate
#[derive(Debug, PartialEq)]
pub enum Error<E> {
    /// Wrong Block Character Check (BCC)
    Bcc,
    /// FIFO buffer overflow
    BufferOverflow,
    /// Collision
    Collision,
    /// Wrong CRC
    Crc,
    /// Incomplete RX frame
    IncompleteFrame,
    /// Internal temperature sensor detects overheating
    Overheating,
    /// Parity check failed
    Parity,
    /// Error during MFAuthent operation
    Protocol,
    /// Timeout
    Timeout,
    /// Write error: FIFO buffer was written at invalid time
    Wr,
    /// Not acknowledge
    Nak,
    /// Provided buffer not large enough
    NoRoom,
    /// Proprietary frames, commands or protocols used
    Proprietary,
    /// Communication error on the underlying interface
    Comm(E),
}

#[cfg(feature = "std")]
impl<E> std::fmt::Display for Error<E> {
    fn fmt(&self, _f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
        Ok(())
    }
}

#[cfg(feature = "std")]
impl<E> std::error::Error for Error<E>
where
    E: std::fmt::Debug,
{
    fn source(&self) -> Option<&(dyn std::error::Error + 'static)> {
        None
    }

    fn description(&self) -> &str {
        "description() is deprecated; use Display"
    }

    fn cause(&self) -> Option<&dyn std::error::Error> {
        self.source()
    }
}