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diff --git a/sound/usb/line6/driver.h b/sound/usb/line6/driver.h
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+/*
+ * Line6 Linux USB driver - 0.9.1beta
+ *
+ * Copyright (C) 2004-2010 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 DRIVER_H
+#define DRIVER_H
+
+#include <linux/spinlock.h>
+#include <linux/usb.h>
+#include <sound/core.h>
+
+#include "midi.h"
+
+#define DRIVER_NAME "line6usb"
+
+enum line6_device_type {
+ LINE6_BASSPODXT,
+ LINE6_BASSPODXTLIVE,
+ LINE6_BASSPODXTPRO,
+ LINE6_GUITARPORT,
+ LINE6_POCKETPOD,
+ LINE6_PODHD300,
+ LINE6_PODHD400,
+ LINE6_PODHD500_0,
+ LINE6_PODHD500_1,
+ LINE6_PODSTUDIO_GX,
+ LINE6_PODSTUDIO_UX1,
+ LINE6_PODSTUDIO_UX2,
+ LINE6_PODXT,
+ LINE6_PODXTLIVE_POD,
+ LINE6_PODXTLIVE_VARIAX,
+ LINE6_PODXTPRO,
+ LINE6_TONEPORT_GX,
+ LINE6_TONEPORT_UX1,
+ LINE6_TONEPORT_UX2,
+ LINE6_VARIAX
+};
+
+#define LINE6_TIMEOUT 1
+#define LINE6_BUFSIZE_LISTEN 32
+#define LINE6_MESSAGE_MAXLEN 256
+
+/*
+ Line6 MIDI control commands
+*/
+#define LINE6_PARAM_CHANGE 0xb0
+#define LINE6_PROGRAM_CHANGE 0xc0
+#define LINE6_SYSEX_BEGIN 0xf0
+#define LINE6_SYSEX_END 0xf7
+#define LINE6_RESET 0xff
+
+/*
+ MIDI channel for messages initiated by the host
+ (and eventually echoed back by the device)
+*/
+#define LINE6_CHANNEL_HOST 0x00
+
+/*
+ MIDI channel for messages initiated by the device
+*/
+#define LINE6_CHANNEL_DEVICE 0x02
+
+#define LINE6_CHANNEL_UNKNOWN 5 /* don't know yet what this is good for */
+
+#define LINE6_CHANNEL_MASK 0x0f
+
+#define MISSING_CASE \
+ pr_err("line6usb driver bug: missing case in %s:%d\n", \
+ __FILE__, __LINE__)
+
+#define CHECK_RETURN(x) \
+do { \
+ err = x; \
+ if (err < 0) \
+ return err; \
+} while (0)
+
+#define CHECK_STARTUP_PROGRESS(x, n) \
+do { \
+ if ((x) >= (n)) \
+ return; \
+ x = (n); \
+} while (0)
+
+extern const unsigned char line6_midi_id[3];
+
+static const int SYSEX_DATA_OFS = sizeof(line6_midi_id) + 3;
+static const int SYSEX_EXTRA_SIZE = sizeof(line6_midi_id) + 4;
+
+/**
+ Common properties of Line6 devices.
+*/
+struct line6_properties {
+ /**
+ Card id string (maximum 16 characters).
+ This can be used to address the device in ALSA programs as
+ "default:CARD=<id>"
+ */
+ const char *id;
+
+ /**
+ Card short name (maximum 32 characters).
+ */
+ const char *name;
+
+ /**
+ Bit vector defining this device's capabilities in the
+ line6usb driver.
+ */
+ int capabilities;
+
+ int altsetting;
+
+ unsigned ep_ctrl_r;
+ unsigned ep_ctrl_w;
+ unsigned ep_audio_r;
+ unsigned ep_audio_w;
+};
+
+/**
+ Common data shared by all Line6 devices.
+ Corresponds to a pair of USB endpoints.
+*/
+struct usb_line6 {
+ /**
+ USB device.
+ */
+ struct usb_device *usbdev;
+
+ /**
+ Device type.
+ */
+ enum line6_device_type type;
+
+ /**
+ Properties.
+ */
+ const struct line6_properties *properties;
+
+ /**
+ Interval (ms).
+ */
+ int interval;
+
+ /**
+ Maximum size of USB packet.
+ */
+ int max_packet_size;
+
+ /**
+ Device representing the USB interface.
+ */
+ struct device *ifcdev;
+
+ /**
+ Line6 sound card data structure.
+ Each device has at least MIDI or PCM.
+ */
+ struct snd_card *card;
+
+ /**
+ Line6 PCM device data structure.
+ */
+ struct snd_line6_pcm *line6pcm;
+
+ /**
+ Line6 MIDI device data structure.
+ */
+ struct snd_line6_midi *line6midi;
+
+ /**
+ URB for listening to PODxt Pro control endpoint.
+ */
+ struct urb *urb_listen;
+
+ /**
+ Buffer for listening to PODxt Pro control endpoint.
+ */
+ unsigned char *buffer_listen;
+
+ /**
+ Buffer for message to be processed.
+ */
+ unsigned char *buffer_message;
+
+ /**
+ Length of message to be processed.
+ */
+ int message_length;
+
+ void (*process_message)(struct usb_line6 *);
+ void (*disconnect)(struct usb_interface *);
+};
+
+extern char *line6_alloc_sysex_buffer(struct usb_line6 *line6, int code1,
+ int code2, int size);
+extern ssize_t line6_nop_read(struct device *dev,
+ struct device_attribute *attr, char *buf);
+extern int line6_read_data(struct usb_line6 *line6, int address, void *data,
+ size_t datalen);
+extern int line6_read_serial_number(struct usb_line6 *line6,
+ int *serial_number);
+extern int line6_send_program(struct usb_line6 *line6, u8 value);
+extern int line6_send_raw_message(struct usb_line6 *line6, const char *buffer,
+ int size);
+extern int line6_send_raw_message_async(struct usb_line6 *line6,
+ const char *buffer, int size);
+extern int line6_send_sysex_message(struct usb_line6 *line6,
+ const char *buffer, int size);
+extern ssize_t line6_set_raw(struct device *dev, struct device_attribute *attr,
+ const char *buf, size_t count);
+extern void line6_start_timer(struct timer_list *timer, unsigned int msecs,
+ void (*function)(unsigned long),
+ unsigned long data);
+extern int line6_transmit_parameter(struct usb_line6 *line6, int param,
+ u8 value);
+extern int line6_version_request_async(struct usb_line6 *line6);
+extern int line6_write_data(struct usb_line6 *line6, int address, void *data,
+ size_t datalen);
+
+#endif