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STRUCT I2C_CLIENT(9) I2C and SMBus Subsystem STRUCT I2C_CLIENT(9)

NAME

struct_i2c_client - represent an I2C slave device

SYNOPSIS

struct i2c_client {


  unsigned short flags;


  unsigned short addr;


  char name[I2C_NAME_SIZE];


  struct i2c_adapter * adapter;


  struct i2c_driver * driver;


  struct device dev;


  int irq;


  struct list_head detected;
};

MEMBERS

flags

I2C_CLIENT_TEN indicates the device uses a ten bit chip address; I2C_CLIENT_PEC indicates it uses SMBus Packet Error Checking

addr

Address used on the I2C bus connected to the parent adapter.

name[I2C_NAME_SIZE]

Indicates the type of the device, usually a chip name that´s generic enough to hide second-sourcing and compatible revisions.

adapter

manages the bus segment hosting this I2C device

driver

device´s driver, hence pointer to access routines

dev

Driver model device node for the slave.

irq

indicates the IRQ generated by this device (if any)

detected

member of an i2c_driver.clients list or i2c-core´s userspace_devices list

DESCRIPTION

An i2c_client identifies a single device (i.e. chip) connected to an i2c bus. The behaviour exposed to Linux is defined by the driver managing the device.

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May 2024 Kernel Hackers Manual 2.6.