wf_lm75_sensor
lm = kzalloc_obj(struct wf_lm75_sensor);
struct wf_lm75_sensor *lm = i2c_get_clientdata(client);
#define wf_to_lm75(c) container_of(c, struct wf_lm75_sensor, sens)
struct wf_lm75_sensor *lm = wf_to_lm75(sr);
struct wf_lm75_sensor *lm = wf_to_lm75(sr);
struct wf_lm75_sensor *lm;