System.PIO.Linux.SPI.Raw

Documentation

data SPIMode

Constructors

Mode0

Mode1

Mode2

Mode3

Instances

Enum SPIMode

Methods

succ :: SPIMode -> SPIMode

pred :: SPIMode -> SPIMode

toEnum :: Int -> SPIMode

fromEnum :: SPIMode -> Int

enumFrom :: SPIMode -> [SPIMode]

enumFromThen :: SPIMode -> SPIMode -> [SPIMode]

enumFromTo :: SPIMode -> SPIMode -> [SPIMode]

enumFromThenTo :: SPIMode -> SPIMode -> SPIMode -> [SPIMode]

type Bits = Word8

type Speed = Word32

transferTxRx1 :: FileDescriptor -> Ptr a -> Int -> Bits -> Speed -> Delay -> CSChange -> IO ()

transferTxRx1 fd buf count bits speed delay csChange transfer count 8-bit bytes from the buffer buf to the descriptor fd.

transferTxRx2 :: FileDescriptor -> Ptr a -> Int -> Ptr a -> Int -> Bits -> Speed -> Delay -> CSChange -> IO ()

transferTx :: FileDescriptor -> Ptr a -> Int -> Bits -> Speed -> Delay -> CSChange -> IO ()

transferRx :: FileDescriptor -> Ptr a -> Int -> Bits -> Speed -> Delay -> CSChange -> IO ()

getMode :: FileDescriptor -> IO SPIMode

Computation getMode fd gets the spi mode for descriptor fd.

setMode :: FileDescriptor -> SPIMode -> IO ()

Computation setMode fd mode sets the spi mode for descriptor fd.

getLsbFirst :: FileDescriptor -> IO Bool

Computation getLsbFirst fd gets the LBS-first flag for descriptor fd.

setLsbFirst :: FileDescriptor -> Bool -> IO ()

Computation setLsbFirst fd flag sets the LBS-first flag for descriptor fd.

getBitsPerWord :: FileDescriptor -> IO Bits

Computation getBitsPerWord fd gets the number of bits in each SPI transfer word for descriptor fd.

setBitsPerWord :: FileDescriptor -> Bits -> IO ()

Computation setBitsPerWord fd bits sets the number of bits in each SPI transfer word for descriptor fd.

getMaxSpeedHz :: FileDescriptor -> IO Speed

Computation getMaxSpeedHz fd gets the maximum SPI transfer speed, in Hz for descriptor fd.

setMaxSpeedHz :: FileDescriptor -> Speed -> IO ()

Computation setMaxSpeedHz fd speed sets the maximum SPI transfer speed, in Hz for descriptor fd.