return 0;
}
+static int default_mixer_resume(struct usb_mixer_elem_list *list)
+{
+ struct usb_mixer_elem_info *cval = mixer_elem_list_to_info(list);
+
+ /* get connector value to "wake up" the USB audio */
+ if (cval->val_type == USB_MIXER_BOOLEAN && cval->channels == 1)
+ get_connector_value(cval, NULL, NULL);
+
+ return 0;
+}
+
+static int default_mixer_reset_resume(struct usb_mixer_elem_list *list)
+{
+ int err = default_mixer_resume(list);
+
+ if (err < 0)
+ return err;
+ return restore_mixer_value(list);
+}
+
int snd_usb_mixer_resume(struct usb_mixer_interface *mixer, bool reset_resume)
{
struct usb_mixer_elem_list *list;
+ usb_mixer_elem_resume_func_t f;
int id, err;
- if (reset_resume) {
- /* restore cached mixer values */
- for (id = 0; id < MAX_ID_ELEMS; id++) {
- for_each_mixer_elem(list, mixer, id) {
- if (list->resume) {
- err = list->resume(list);
- if (err < 0)
- return err;
- }
+ /* restore cached mixer values */
+ for (id = 0; id < MAX_ID_ELEMS; id++) {
+ for_each_mixer_elem(list, mixer, id) {
+ if (reset_resume)
+ f = list->reset_resume;
+ else
+ f = list->resume;
+ if (f) {
+ err = f(list);
+ if (err < 0)
+ return err;
}
}
}
list->id = unitid;
list->dump = snd_usb_mixer_dump_cval;
#ifdef CONFIG_PM
- list->resume = restore_mixer_value;
+ list->resume = default_mixer_resume;
+ list->reset_resume = default_mixer_reset_resume;
#endif
}