In commit "ASoC: dapm: Add API call to query valid DAPM pathshttp://git.kernel.org/?p=linux/kernel/git/broonie/sound.git;a=commit;h=ec2e3031b65f23f66840b5c89c4b83076831a435" , the signature of the functions is_connected_input_ep / is_connected_output_ep has been modified so that the 2 functions now fill list of connected DAPM widgets.
What I don't understand is why the way widgets are added is not symmetric between the two:
In function is_connected_output_ep: -----------------------------------------------
list_for_each_entry(path, &widget->sinks, list_source) { ... err = dapm_list_add_widget(list, path->sink); ... }
In function is_connected_input_ep: ---------------------------------------------
list_for_each_entry(path, &widget->sources, list_sink) { ... err = dapm_list_add_widget(list, path->sink); }
I would have expected to have for the latter: err = dapm_list_add_widget(list, path->source);
regards, Sebastien Le Duc