I2C_SMBUS_XFER
Section: I2C and SMBus Subsystem (9)
Updated: February 2011
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NAME
i2c_smbus_xfer - execute SMBus protocol operations
SYNOPSIS
-
s32 i2c_smbus_xfer(struct i2c_adapter * adapter, u16 addr, unsigned short flags, char read_write, u8 command, int protocol, union i2c_smbus_data * data);
ARGUMENTS
adapter
-
- Handle to I2C bus
addr
-
Address of SMBus slave on that bus
flags
-
I2C_CLIENT_* flags (usually zero or I2C_CLIENT_PEC)
read_write
-
I2C_SMBUS_READ or I2C_SMBUS_WRITE
command
-
Byte interpreted by slave, for protocols which use such bytes
protocol
-
SMBus protocol operation to execute, such as I2C_SMBUS_PROC_CALL
data
-
Data to be read or written
DESCRIPTION
This executes an SMBus protocol operation, and returns a negative errno code else zero on success.
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