i2c_verify_client

Langue: en

Autres versions - même langue

Version: June 2009 (debian - 07/07/09)

Section: 9 (Appels noyau Linux)

NAME

i2c_verify_client - return parameter as i2c_client, or NULL

SYNOPSIS

struct i2c_client * i2c_verify_client(struct device * dev);

ARGUMENTS

dev

device, probably from some driver model iterator

DESCRIPTION

When traversing the driver model tree, perhaps using driver model iterators like device_for_each_child(), you can't assume very much about the nodes you find. Use this function to avoid oopses caused by wrongly treating some non-I2C device as an i2c_client.