/* SPDX-License-Identifier: GPL-2.0-only */ /* * Line 6 Linux USB driver * * Copyright (C) 2004-2010 Markus Grabner (grabner@icg.tugraz.at) */ #ifndef PLAYBACK_H #define PLAYBACK_H #include #include "driver.h" /* * When the TonePort is used with jack in full duplex mode and the outputs are * not connected, the software monitor produces an ugly noise since everything * written to the output buffer (i.e., the input signal) will be repeated in * the next period (sounds like a delay effect). As a workaround, the output * buffer is cleared after the data have been read, but there must be a better * solution. Until one is found, this workaround can be used to fix the * problem. */ #define USE_CLEAR_BUFFER_WORKAROUND 1 extern const struct snd_pcm_ops snd_line6_playback_ops; extern int line6_create_audio_out_urbs(struct snd_line6_pcm *line6pcm); extern int line6_submit_audio_out_all_urbs(struct snd_line6_pcm *line6pcm); #endif