Embedded Application Programming Interface - picmg

7.8 EapiI2CWriteTransfer
7.8.1 Description
Write to a specific register in the selected I2C device.
Writes to an I2C device at the I2C address Addr the amount of ByteCnt bytes from the buffer
*pBuffer while using the device specific command Cmd. Depending on the addressed I2C device
Cmd can be a specific command or a byte offset.
7.8.2 Parameters
Id
uint32_t
EAPI_CALLTYPE
EApiI2CWriteTransfer(
__IN uint32_t Id , /* I2C Bus Id */
__IN uint32_t Addr
__IN See '7.1.1 I2C Bus Ids' on page 32
, /* Encoded 7/10Bit I2C
* Device Address
*/
__IN uint32_t Cmd , /* I2C Command/Offset */
__IN void *pBuffer , /* Transfer Data pBuffer */
__IN uint32_t ByteCnt /* Byte Count to write */
);
FUNC_DEF 15: EApiI2CWriteTransfer
Addr
Cmd
__IN Encoded 7/10 Bit I2C Device Address.
__IN Encoded I2C Device Command / Index.
pBuffer
__IN Pointer to a buffer containing the data to be transferred.
ByteCnt
__IN Size, in bytes, of the information pointed to by the pBuffer parameter
PICMG® EAPI R1.0, August 8, 2010 page 40 of 83