59     struct mixer_hw_data *hw_data = data;  in mixer_hw_close()  local
61     if (!hw_data)  in mixer_hw_close()
64     if (hw_data->fd >= 0)  in mixer_hw_close()
65         close(hw_data->fd);  in mixer_hw_close()
67     hw_data->fd = -1;  in mixer_hw_close()
68     free(hw_data);  in mixer_hw_close()
69     hw_data = NULL;  in mixer_hw_close()
74     struct mixer_hw_data *hw_data = data;  in mixer_hw_ioctl()  local
82     return ioctl(hw_data->fd, cmd, arg);  in mixer_hw_ioctl()
88     struct mixer_hw_data *hw_data = data;  in mixer_hw_read_event()  local
90     return read(hw_data->fd, ev, size);  in mixer_hw_read_event()
102     struct mixer_hw_data *hw_data;  in mixer_hw_open()  local
111     hw_data = calloc(1, sizeof(*hw_data));  in mixer_hw_open()
112     if (!hw_data)  in mixer_hw_open()
115     hw_data->card = card;  in mixer_hw_open()
116     hw_data->fd = fd;  in mixer_hw_open()
117     *data = hw_data;  in mixer_hw_open()