mp9945_data
struct mp9945_data *data = to_mp9945_data(info);
struct mp9945_data *data;
#define to_mp9945_data(x) container_of(x, struct mp9945_data, info)
static int mp9945_read_vout(struct i2c_client *client, struct mp9945_data *data)
struct mp9945_data *data = to_mp9945_data(info);