text: #ifndef CAIAQ_DEVICE_H
  #define CAIAQ_DEVICE_H
  
  #include "../usbaudio.h"
  
  #define USB_VID_NATIVEINSTRUMENTS 0x17cc
  
  #define USB_PID_RIGKONTROL2	0x1969
  #define USB_PID_RIGKONTROL3	0x1940
  #define USB_PID_KORECONTROLLER	0x4711
  #define USB_PID_KORECONTROLLER2	0x4712
  #define USB_PID_AK1		0x0815
  #define USB_PID_AUDIO2DJ	0x041c
  #define USB_PID_AUDIO4DJ	0x0839
  #define USB_PID_AUDIO8DJ	0x1978
  #define USB_PID_SESSIONIO	0x1915
  #define USB_PID_GUITARRIGMOBILE	0x0d8d
  
  #define EP1_BUFSIZE 64
  #define CAIAQ_USB_STR_LEN 0xff
  #define MAX_STREAMS 32
  
  //#define	SND_USB_CAIAQ_DEBUG
  
  #define MODNAME "snd-usb-caiaq"
  #define log(x...) snd_printk(KERN_WARNING MODNAME" log: " x)
  
  #ifdef SND_USB_CAIAQ_DEBUG
  #define debug(x...) snd_printk(KERN_WARNING MODNAME " debug: " x)
  #else
  #define debug(x...) do { } while(0)
  #endif
  
  #define EP1_CMD_GET_DEVICE_INFO	0x1
  #define EP1_CMD_READ_ERP	0x2
  #define EP1_CMD_READ_ANALOG	0x3
  #define EP1_CMD_READ_IO		0x4
  #define EP1_CMD_WRITE_IO	0x5
  #define EP1_CMD_MIDI_READ	0x6
  #define EP1_CMD_MIDI_WRITE	0x7
  #define EP1_CMD_AUDIO_PARAMS	0x9
  #define EP1_CMD_AUTO_MSG	0xb
  #define EP1_CMD_DIMM_LEDS       0xc
  
  struct caiaq_device_spec {
  	unsigned short fw_version;
  	unsigned char hw_subtype;
  	unsigned char num_erp;
  	unsigned char num_analog_in;
  	unsigned char num_digital_in;
  	unsigned char num_digital_out;
  	unsigned char num_analog_audio_out;
  	unsigned char num_analog_audio_in;
  	unsigned char num_digital_audio_out;
  	unsigned char num_digital_audio_in;
  	unsigned char num_midi_out;
  	unsigned char num_midi_in;
  	unsigned char data_alignment;
  } __attribute__ ((packed));
  
  struct snd_usb_caiaq_cb_info;
  
  struct snd_usb_caiaqdev {
  	struct snd_usb_audio chip;
  
  	struct urb ep1_in_urb;
  	struct urb midi_out_urb;
  	struct urb **data_urbs_in;
  	struct urb **data_urbs_out;
  	struct snd_usb_caiaq_cb_info *data_cb_info;
  
  	unsigned char ep1_in_buf[EP1_BUFSIZE];
  	unsigned char ep1_out_buf[EP1_BUFSIZE];
  	unsigned char midi_out_buf[EP1_BUFSIZE];
  
  	struct caiaq_device_spec spec;
  	spinlock_t spinlock;
  	wait_queue_head_t ep1_wait_queue;
  	wait_queue_head_t prepare_wait_queue;
  	int spec_received, audio_parm_answer;
  	int midi_out_active;
  
  	char vendor_name[CAIAQ_USB_STR_LEN];
  	char product_name[CAIAQ_USB_STR_LEN];
  
  	int n_streams, n_audio_in, n_audio_out;
  	int streaming, first_packet, output_running;
  	int audio_in_buf_pos[MAX_STREAMS];
  	int audio_out_buf_pos[MAX_STREAMS];
  	int period_in_count[MAX_STREAMS];
  	int period_out_count[MAX_STREAMS];
  	int input_panic, output_panic, warned;
  	char *audio_in_buf, *audio_out_buf;
  	unsigned int samplerates, bpp;
  
  	struct snd_pcm_substream *sub_playback[MAX_STREAMS];
  	struct snd_pcm_substream *sub_capture[MAX_STREAMS];
  
  	/* Controls */
  	unsigned char control_state[64];
  
  	/* Linux input */
  #ifdef CONFIG_SND_USB_CAIAQ_INPUT
  	struct input_dev *input_dev;
  	char phys[64];			/* physical device path */
  	unsigned short keycode[64];
  #endif
  
  	/* ALSA */
  	struct snd_pcm *pcm;
  	struct snd_pcm_hardware pcm_info;
  	struct snd_rawmidi *rmidi;
  	struct snd_rawmidi_substream *midi_receive_substream;
  	struct snd_rawmidi_substream *midi_out_substream;
  };
  
  struct snd_usb_caiaq_cb_info {
  	struct snd_usb_caiaqdev *dev;
  	int index;
  };
  
  #define caiaqdev(c) ((struct snd_usb_caiaqdev*)(c)->private_data)
  
  int snd_usb_caiaq_set_audio_params (struct snd_usb_caiaqdev *dev, int rate, int depth, int bbp);
  int snd_usb_caiaq_set_auto_msg (struct snd_usb_caiaqdev *dev, int digital, int analog, int erp);
  int snd_usb_caiaq_send_command(struct snd_usb_caiaqdev *dev,
  			       unsigned char command,
  			       const unsigned char *buffer,
  			       int len);
  
  #endif /* CAIAQ_DEVICE_H */
  