1I2C_NEW_DUMMY(9)            I2C and SMBus Subsystem           I2C_NEW_DUMMY(9)
2
3
4

NAME

6       i2c_new_dummy - return a new i2c device bound to a dummy driver
7

SYNOPSIS

9       struct i2c_client * i2c_new_dummy(struct i2c_adapter * adapter,
10                                         u16 address);
11

ARGUMENTS

13       adapter
14           the adapter managing the device
15
16       address
17           seven bit address to be used
18

CONTEXT

20       can sleep
21

DESCRIPTION

23       This returns an I2C client bound to the “dummy” driver, intended for
24       use with devices that consume multiple addresses. Examples of such
25       chips include various EEPROMS (like 24c04 and 24c08 models).
26
27       These dummy devices have two main uses. First, most I2C and SMBus calls
28       except i2c_transfer need a client handle; the dummy will be that
29       handle. And second, this prevents the specified address from being
30       bound to a different driver.
31
32       This returns the new i2c client, which should be saved for later use
33       with i2c_unregister_device; or NULL to indicate an error.
34

36Kernel Hackers Manual 3.10         June 2019                  I2C_NEW_DUMMY(9)
Impressum