1 /* SPDX-License-Identifier: GPL-2.0-only */ 1 /* SPDX-License-Identifier: GPL-2.0-only */ 2 /* 2 /* 3 * Line 6 Linux USB driver 3 * Line 6 Linux USB driver 4 * 4 * 5 * Copyright (C) 2004-2010 Markus Grabner (lin !! 5 * Copyright (C) 2004-2010 Markus Grabner (grabner@icg.tugraz.at) 6 */ 6 */ 7 7 8 #ifndef PLAYBACK_H 8 #ifndef PLAYBACK_H 9 #define PLAYBACK_H 9 #define PLAYBACK_H 10 10 11 #include <sound/pcm.h> 11 #include <sound/pcm.h> 12 12 13 #include "driver.h" 13 #include "driver.h" 14 14 15 /* 15 /* 16 * When the TonePort is used with jack in full 16 * When the TonePort is used with jack in full duplex mode and the outputs are 17 * not connected, the software monitor produce 17 * not connected, the software monitor produces an ugly noise since everything 18 * written to the output buffer (i.e., the inp 18 * written to the output buffer (i.e., the input signal) will be repeated in 19 * the next period (sounds like a delay effect 19 * the next period (sounds like a delay effect). As a workaround, the output 20 * buffer is cleared after the data have been 20 * buffer is cleared after the data have been read, but there must be a better 21 * solution. Until one is found, this workarou 21 * solution. Until one is found, this workaround can be used to fix the 22 * problem. 22 * problem. 23 */ 23 */ 24 #define USE_CLEAR_BUFFER_WORKAROUND 1 24 #define USE_CLEAR_BUFFER_WORKAROUND 1 25 25 26 extern const struct snd_pcm_ops snd_line6_play 26 extern const struct snd_pcm_ops snd_line6_playback_ops; 27 27 28 extern int line6_create_audio_out_urbs(struct 28 extern int line6_create_audio_out_urbs(struct snd_line6_pcm *line6pcm); 29 extern int line6_submit_audio_out_all_urbs(str 29 extern int line6_submit_audio_out_all_urbs(struct snd_line6_pcm *line6pcm); 30 30 31 #endif 31 #endif 32 32
Linux® is a registered trademark of Linus Torvalds in the United States and other countries.
TOMOYO® is a registered trademark of NTT DATA CORPORATION.