Enum CardError 

#[non_exhaustive]
pub enum CardError {
    OutOfRange,
    AddressError,
    BlockLenError,
    EraseSequence,
    EraseParam,
    WriteProtect,
    CardIsLocked,
    LockUnlockFailed,
    CommandCrcFailed,
    IllegalCommand,
    CardEccFailed,
    ControllerError,
    GenericError,
    Unknown(u32),
}

Per-bit error status decoded out of an R1 response.

SD Physical Layer spec section 4.10.1 reserves bits 19..=31 of the 32-bit native R1 response for card-state error flags. SPI R1 reuses bits 1..=6 of the single response byte for a subset of those. Variants below cover both, with CardError::Unknown preserving the raw native bit pattern when no known flag matches (e.g. reserved-for-application bits).

Marked #[non_exhaustive]: new card-status bits may be classified out of Unknown(_) over time, and downstream match sites must keep a _ => ... arm.

Variants (Non-exhaustive)

Non-exhaustive enums could have additional variants added in future. Therefore, when matching against variants of non-exhaustive enums, an extra wildcard arm must be added to account for any future variants.

OutOfRange

OUT_OF_RANGE (bit 31): the command’s argument was out of the allowed range for this card (e.g. LBA beyond capacity).

AddressError

ADDRESS_ERROR (bit 30) / SPI ADDRESS_ERROR (bit 5): misaligned address for the current block length, or out-of-range address.

BlockLenError

BLOCK_LEN_ERROR (bit 29) / SPI PARAMETER_ERROR (bit 6): transferred block length is not allowed for this card or the parameter argument was out of range.

EraseSequence

ERASE_SEQ_ERROR (bit 28) / SPI ERASE_SEQ_ERROR (bit 4): erase command sequence error, or ERASE_RESET (SPI bit 1).

EraseParam

ERASE_PARAM (bit 27): an invalid selection of write blocks for erase.

WriteProtect

WP_VIOLATION (bit 26): attempted write to a write-protected block.

CardIsLocked

CARD_IS_LOCKED (bit 25): card is locked by host, normal data transfers are inhibited.

LockUnlockFailed

LOCK_UNLOCK_FAILED (bit 24): a sequence or password error in the lock/unlock command.

CommandCrcFailed

COM_CRC_ERROR (bit 23) / SPI COM_CRC_ERROR (bit 3): CRC check of the previous command failed.

IllegalCommand

ILLEGAL_COMMAND (bit 22) / SPI ILLEGAL_COMMAND (bit 2): command not legal for the current card state.

CardEccFailed

CARD_ECC_FAILED (bit 21): card internal ECC was applied but failed to correct the data.

ControllerError

CC_ERROR (bit 20): generic card controller error.

GenericError

ERROR (bit 19): a catch-all reported by the card when a non-classified internal error occurred during the command execution.

Unknown(u32)

Unknown / reserved error bit set. Carries the native 13-bit error nibble (raw >> 19) so the caller can log the exact pattern.

Trait Implementations

impl Clone for CardError

fn clone(&self) -> CardError

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Copy for CardError

impl Debug for CardError

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Display for CardError

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Eq for CardError

impl Error for CardError

fn source(&self) -> Option<&(dyn Error + 'static)>

Returns the lower-level source of this error, if any.

fn description(&self) -> &str

👎Deprecated since 1.42.0:

use the Display impl or to_string()

fn cause(&self) -> Option<&dyn Error>

👎Deprecated since 1.33.0:

replaced by Error::source, which can support downcasting

fn provide<'a>(&'a self, request: &mut Request<'a>)

🔬This is a nightly-only experimental API. (error_generic_member_access)

Provides type-based access to context intended for error reports.

impl PartialEq for CardError

fn eq(&self, other: &CardError) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl StructuralPartialEq for CardError