Crate embedded_sdmmc

embedded-sdmmc-rs - A SD/MMC Library written in Embedded Rust

Structs

• Attributes
  Indicates whether a directory entry is read-only, a directory, a volume label, etc.
• Block
  Represents a standard 512 byte block (also known as a sector). IBM PC formatted 5.25“ and 3.5“ floppy disks, SD/MMC cards up to 1 GiB in size and IDE/SATA Hard Drives up to about 2 TiB all have 512 byte blocks.
• BlockCount
  Represents the a number of blocks (or sectors). Add this to a BlockIdx to get an actual address on disk.
• BlockIdx
  Represents the linear numeric address of a block (or sector). The first block on a disk gets BlockIdx(0) (which usually contains the Master Boot Record).
• Cluster
  Represents a cluster on disk.
• Controller
  A Controller wraps a block device and gives access to the volumes within it.
• DirEntry
  Represents a directory entry, which tells you about other files and directories.
• Directory
  Represents an open directory on disk.
• FatVolume
  Identifies a FAT16 Volume on the disk.
• File
  Represents an open file on disk.
• SdMmcSpi
  Represents an SD Card interface built from an SPI peripheral and a Chip Select pin. We need Chip Select to be separate so we can clock out some bytes without Chip Select asserted (which puts the card into SPI mode).
• ShortFileName
  An MS-DOS 8.3 filename. 7-bit ASCII only. All lower-case is converted to upper-case by default.
• Timestamp
  Represents an instant in time, in the local time zone. TODO: Consider replacing this with POSIX time as a u32, which would save two bytes at the expense of some maths.
• Volume
  Represents a partition with a filesystem within it.
• VolumeIdx
  A VolumeIdx is a number which identifies a volume (or partition) on a disk. VolumeIdx(0) is the first primary partition on an MBR partitioned disk.

Enums

• Error
  Represents all the ways the functions in this crate can fail.
• FilenameError
  Various filename related errors that can occur.
• Mode
  The different ways we can open a file.
• SdMmcError
  The possible errors SdMmcSpi can generate.
• VolumeType
  This enum holds the data for the various different types of filesystems we support.

Constants

• MAX_FILE_SIZE
  Maximum file size supported by this library
• MAX_OPEN_DIRS
  We have to track what directories are open to prevent users from modifying open directories (like creating a file when we have an open iterator).
• MAX_OPEN_FILES
  We have to track what files and directories are open to prevent users from deleting open files (like Windows does).

Traits

• BlockDevice
  Represents a block device - a device which can read and write blocks (or sectors). Only supports devices which are <= 2 TiB in size.
• TimeSource
  Things that impl this can tell you the current time.