--- zzzz-none-000/linux-3.10.107/sound/usb/usbaudio.h	2017-06-27 09:49:32.000000000 +0000
+++ scorpion-7490-727/linux-3.10.107/sound/usb/usbaudio.h	2021-02-04 17:41:59.000000000 +0000
@@ -37,11 +37,13 @@
 	struct usb_interface *pm_intf;
 	u32 usb_id;
 	struct mutex mutex;
-	struct rw_semaphore shutdown_rwsem;
-	unsigned int shutdown:1;
-	unsigned int probing:1;
 	unsigned int autosuspended:1;	
+	atomic_t active;
+	atomic_t shutdown;
+	atomic_t usage_count;
+	wait_queue_head_t shutdown_wait;
 	unsigned int txfr_quirk:1; /* Subframe boundaries on transfers */
+	unsigned int tx_length_quirk:1; /* Put length specifier in transfers */
 	
 	int num_interfaces;
 	int num_suspended_intf;
@@ -55,12 +57,20 @@
 	struct list_head mixer_list;	/* list of mixer interfaces */
 
 	int setup;			/* from the 'device_setup' module param */
-	int nrpacks;			/* from the 'nrpacks' module param */
 	bool autoclock;			/* from the 'autoclock' module param */
 
 	struct usb_host_interface *ctrl_intf;	/* the audio control interface */
 };
 
+#define usb_audio_err(chip, fmt, args...) \
+	dev_err(&(chip)->dev->dev, fmt, ##args)
+#define usb_audio_warn(chip, fmt, args...) \
+	dev_warn(&(chip)->dev->dev, fmt, ##args)
+#define usb_audio_info(chip, fmt, args...) \
+	dev_info(&(chip)->dev->dev, fmt, ##args)
+#define usb_audio_dbg(chip, fmt, args...) \
+	dev_dbg(&(chip)->dev->dev, fmt, ##args)
+
 /*
  * Information about devices with broken descriptors
  */
@@ -72,9 +82,11 @@
 enum quirk_type {
 	QUIRK_IGNORE_INTERFACE,
 	QUIRK_COMPOSITE,
+	QUIRK_AUTODETECT,
 	QUIRK_MIDI_STANDARD_INTERFACE,
 	QUIRK_MIDI_FIXED_ENDPOINT,
 	QUIRK_MIDI_YAMAHA,
+	QUIRK_MIDI_ROLAND,
 	QUIRK_MIDI_MIDIMAN,
 	QUIRK_MIDI_NOVATION,
 	QUIRK_MIDI_RAW_BYTES,
@@ -105,4 +117,7 @@
 #define combine_triple(s)  (combine_word(s) | ((unsigned int)(s)[2] << 16))
 #define combine_quad(s)    (combine_triple(s) | ((unsigned int)(s)[3] << 24))
 
+int snd_usb_lock_shutdown(struct snd_usb_audio *chip);
+void snd_usb_unlock_shutdown(struct snd_usb_audio *chip);
+
 #endif /* __USBAUDIO_H */