*参照元 [#kc538868] #backlinks *説明 [#w4132968] -パス: [[linux-4.4.1/sound/soc/soc-dapm.c]] -FIXME: これは何? --説明 **引数 [#hff68424] -struct snd_soc_card *card -- --[[linux-4.4.1/snd_soc_card]] -struct snd_kcontrol *kcontrol -- --[[linux-4.4.1/snd_kcontrol]] -int mux -struct soc_enum *e -- --[[linux-4.4.1/soc_enum]] **返り値 [#pda59f62] -int -- **参考 [#k3666675] *実装 [#l73edebd] /* test and update the power status of a mux widget */ static int soc_dapm_mux_update_power(struct snd_soc_card *card, struct snd_kcontrol *kcontrol, int mux, struct soc_enum *e) { struct snd_soc_dapm_path *path; int found = 0; bool connect; - --[[linux-4.4.1/snd_soc_dapm_path]] lockdep_assert_held(&card->dapm_mutex); - --[[linux-4.4.1/lockdep_assert_held()]] /* find dapm widget path assoc with kcontrol */ dapm_kcontrol_for_each_path(path, kcontrol) { found = 1; /* we now need to match the string in the enum to the path */ if (!(strcmp(path->name, e->texts[mux]))) connect = true; else connect = false; soc_dapm_connect_path(path, connect, "mux update"); } - --[[linux-4.4.1/dapm_kcontrol_for_each_path()]] --[[linux-4.4.1/strcmp()]] --[[linux-4.4.1/soc_dapm_connect_path()]] if (found) dapm_power_widgets(card, SND_SOC_DAPM_STREAM_NOP); - --[[linux-4.4.1/dapm_power_widgets()]] return found; } *コメント [#ffe57a26]