57     struct mixer_hw_data *hw_data = data;  in mixer_hw_close()  local
59     if (!hw_data)  in mixer_hw_close()
62     if (hw_data->fd >= 0)  in mixer_hw_close()
63         close(hw_data->fd);  in mixer_hw_close()
65     hw_data->fd = -1;  in mixer_hw_close()
66     free(hw_data);  in mixer_hw_close()
67     hw_data = NULL;  in mixer_hw_close()
72     struct mixer_hw_data *hw_data = data;  in mixer_hw_ioctl()  local
80     return ioctl(hw_data->fd, cmd, arg);  in mixer_hw_ioctl()
86     struct mixer_hw_data *hw_data = data;  in mixer_hw_read_event()  local
88     return read(hw_data->fd, ev, size);  in mixer_hw_read_event()
101     struct mixer_hw_data *hw_data;  in mixer_hw_open()  local
110     hw_data = calloc(1, sizeof(*hw_data));  in mixer_hw_open()
111     if (!hw_data) {  in mixer_hw_open()
116     hw_data->card = card;  in mixer_hw_open()
117     hw_data->fd = fd;  in mixer_hw_open()
118     *data = hw_data;  in mixer_hw_open()