I2C slave device control. More...

#include <i2c.h>

Data Fields
ssize_t(*)	read (i2c_dev dev, void buf, size_t n, off_t offset)
	Reads from the device.
ssize_t(*)	write (i2c_dev dev, const void buf, size_t n, off_t offset)
	Writes to the device.
int(*)	ioctl (i2c_dev dev, ioctl_command_t command, void arg)
	Device IO control.
off_t(*)	get_size (i2c_dev *dev)
	Gets the file size.
blksize_t(*)	get_block_size (i2c_dev *dev)
	Gets the file block size.
void(*)	destroy (i2c_dev *dev)
	Destroys the device.
i2c_bus *	bus
	The bus control.
uint16_t	address
	The device address.
int	bus_fd
	File descriptor of the bus.

Detailed Description

I2C slave device control.

Field Documentation

int i2c_dev::bus_fd

File descriptor of the bus.

This prevents destruction of the bus since we hold a reference to it with this.

int(*) i2c_dev::ioctl(i2c_dev *dev, ioctl_command_t command, void *arg)

Device IO control.

Return values

0	Successful operation.
negative	Negative error number in case of an error.

ssize_t(*) i2c_dev::read(i2c_dev *dev, void *buf, size_t n, off_t offset)

Reads from the device.

Return values

non-negative	Bytes transferred from device.
negative	Negative error number in case of an error.

ssize_t(*) i2c_dev::write(i2c_dev *dev, const void *buf, size_t n, off_t offset)

Writes to the device.

Return values

non-negative	Bytes transferred to device.
negative	Negative error number in case of an error.

The documentation for this struct was generated from the following file: