Writing/reading data

Description

Functions to write and read data to/from an I²C device.

Functions
bool8_t	I2CWriteRead (LibTiePieHandle_t hDevice, uint16_t wAddress, const void *pWriteBuffer, uint32_t dwWriteSize, void *pReadBuffer, uint32_t dwReadSize)
	Write and read data to/from to a specified address on the I2C bus, using a specified I2C host. More...

Function Documentation

bool8_t I2CWriteRead	(	LibTiePieHandle_t	hDevice,
		uint16_t	wAddress,
		const void *	pWriteBuffer,
		uint32_t	dwWriteSize,
		void *	pReadBuffer,
		uint32_t	dwReadSize
	)

Write and read data to/from to a specified address on the I²C bus, using a specified I²C host.

Equivalent:

I2CWrite( hDevice , wAddress , pWriteBuffer , dwWriteSize , BOOL8_FALSE ) &&
I2CRead( hDevice , wAddress , pReadBuffer , dwReadSize , BOOL8_TRUE );

Parameters

[in]	hDevice	A device handle identifying the I2C host.
[in]	wAddress	The I2C address to write to.
[in]	pWriteBuffer	A pointer to the write buffer.
[in]	dwWriteSize	The number of bytes to write.
[out]	pReadBuffer	A pointer to the read buffer.
[in]	dwReadSize	The number of bytes to read.

Returns

BOOL8_TRUE if successful, BOOL8_FALSE otherwise.

Status values

INTERNAL_ADDRESS	The requested I2C address is an internally used address in the device.
BIT_ERROR	The requested I2C operation generated a bit error.
NO_ACKNOWLEDGE	The requested I2C operation generated "No acknowledge".
INVALID_HANDLE	The handle is not a valid I2C host handle.
OBJECT_GONE	The object indicated by the handle is no longer available.
LIBRARY_NOT_INITIALIZED	The library is not initialized, see LibInit().
SUCCESS	The function executed successfully.

Since

0.6