Hi, My mediaplayer application is Helix , it will backup the audio data if audiocard do not support hardware pause and resume . For improving the performance , how to implement those function in the bluetooth-alsaplugin ( in the snd_pcm_ioplug_callback struct). Do those functions need be supported by Bluetooth headset ? thanks ! Best Regards! Paul -- To unsubscribe from this list: send the line "unsubscribe linux-bluetooth" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html