Module io

Memory-mapped IO.

C header: include/asm-generic/io.h

Re-exports

• pub use resource::Resource;

Modules

• mem
  Generic memory-mapped IO.
• poll
  IO polling.
• register
  Macro to define register layout and accessors.
• resource
  Abstractions for system resources.

Macros

• io_project
  Project an I/O type to a subview of it.
• io_read
  Read from I/O memory.
• io_write
  Writes to I/O memory.
• register
  Defines a dedicated type for a register, including getter and setter methods for its fields and methods to read and write it from an Io region.

Structs

• IoSysMapBackend
  I/O Backend for IoSysMap.
• Mmio
  A view of memory-mapped I/O region.
• MmioBackend
  I/O Backend for memory-mapped I/O.
• MmioRaw
  Raw representation of an MMIO region.
• Region
  Untyped I/O region.
• RelaxedMmio
  Mmio but using relaxed accessors.
• RelaxedMmioBackend
  I/O Backend for memory-mapped I/O, with relaxed access semantics.
• SysMem
  A view of a system memory region.
• SysMemBackend
  I/O Backend for system memory.

Enums

• IoSysMap
  Either Mmio or SysMem.

Traits

• Io
  Extension trait to provide I/O operation methods to types that implement IoBase.
• IoBackend
  I/O backends.
• IoBase
  Types implementing this trait (e.g. MMIO BARs or PCI config regions) can perform I/O operations on regions of memory.
• IoCapable
  Trait indicating that an I/O backend supports operations of a certain type and providing an implementation for these operations.
• IoCopyable
  Trait indicating that an I/O backend supports memory copy operations.
• IoLoc
  Describes a given I/O location: its offset, width, and type to convert the raw value from and into.

Type Aliases

• PhysAddr
  Physical address type.
• ResourceSize
  Resource Size type.