g_audio_setup
status = g_audio_setup(audio, "UAC1_PCM", "UAC1_Gadget");
ret = g_audio_setup(agdev, "UAC2 PCM", "UAC2_Gadget");
EXPORT_SYMBOL_GPL(g_audio_setup);
int g_audio_setup(struct g_audio *g_audio, const char *pcm_name,