Staging: add line6 usb driver
This is an experimental Linux driver for the guitar amp, cab, and
effects modeller PODxt Pro by Line6 (and similar devices), supporting
the following features:
- Reading/writing individual parameters
- Reading/writing complete channel, effects setup, and amp setup data
- Channel switching
- Virtual MIDI interface
- Tuner access
- Playback/capture/mixer device for any ALSA-compatible PCM audio
application
- Signal routing (record clean/processed guitar signal, re-amping)
Moreover, preliminary support for the Variax Workbench is included.
From: Markus Grabner <grabner@icg.tugraz.at>
Cc: Mariusz Kozlowski <m.kozlowski@tuxland.pl>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
diff --git a/drivers/staging/line6/playback.h b/drivers/staging/line6/playback.h
new file mode 100644
index 0000000..019c40f
--- /dev/null
+++ b/drivers/staging/line6/playback.h
@@ -0,0 +1,29 @@
+/*
+ * Line6 Linux USB driver - 0.8.0
+ *
+ * Copyright (C) 2004-2009 Markus Grabner (grabner@icg.tugraz.at)
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation, version 2.
+ *
+ */
+
+#ifndef PLAYBACK_H
+#define PLAYBACK_H
+
+
+#include "driver.h"
+
+#include <sound/pcm.h>
+
+
+extern struct snd_pcm_ops snd_line6_playback_ops;
+
+
+extern int create_audio_out_urbs(struct snd_line6_pcm *line6pcm);
+extern int snd_line6_playback_trigger(struct snd_pcm_substream *substream, int cmd);
+extern void unlink_wait_clear_audio_out_urbs(struct snd_line6_pcm *line6pcm);
+
+
+#endif