cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
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playback.h (966B)

      1/* SPDX-License-Identifier: GPL-2.0-only */
      2/*
      3 * Line 6 Linux USB driver
      4 *
      5 * Copyright (C) 2004-2010 Markus Grabner (grabner@icg.tugraz.at)
      6 */
      7
      8#ifndef PLAYBACK_H
      9#define PLAYBACK_H
     10
     11#include <sound/pcm.h>
     12
     13#include "driver.h"
     14
     15/*
     16 * When the TonePort is used with jack in full duplex mode and the outputs are
     17 * not connected, the software monitor produces an ugly noise since everything
     18 * written to the output buffer (i.e., the input signal) will be repeated in
     19 * the next period (sounds like a delay effect). As a workaround, the output
     20 * buffer is cleared after the data have been read, but there must be a better
     21 * solution. Until one is found, this workaround can be used to fix the
     22 * problem.
     23 */
     24#define USE_CLEAR_BUFFER_WORKAROUND 1
     25
     26extern const struct snd_pcm_ops snd_line6_playback_ops;
     27
     28extern int line6_create_audio_out_urbs(struct snd_line6_pcm *line6pcm);
     29extern int line6_submit_audio_out_all_urbs(struct snd_line6_pcm *line6pcm);
     30
     31#endif