Offer USB MIDI in 4 & 16 virtual cable options

teensy3/usb_desc.h

   #define ENDPOINT3_CONFIG	ENDPOINT_TRANSIMIT_ONLY
   #define ENDPOINT4_CONFIG	ENDPOINT_RECEIVE_ONLY
 
-#elif defined(USB_MIDI_X8)
+#elif defined(USB_MIDI4)
   #define VENDOR_ID		0x16C0
   #define PRODUCT_ID		0x0485
-  #define BCD_DEVICE		0x0300
+  #define BCD_DEVICE		0x0211
   #define MANUFACTURER_NAME	{'T','e','e','n','s','y','d','u','i','n','o'}
   #define MANUFACTURER_NAME_LEN	11
-  #define PRODUCT_NAME		{'T','e','e','n','s','y',' ','M','I','D','I','x','8'}
+  #define PRODUCT_NAME		{'T','e','e','n','s','y',' ','M','I','D','I','x','4'}
   #define PRODUCT_NAME_LEN	13
   #define EP0_SIZE		64
   #define NUM_ENDPOINTS         4
   #define SEREMU_RX_SIZE        32
   #define SEREMU_RX_INTERVAL    2
   #define MIDI_INTERFACE        0	// MIDI
-  #define MIDI_NUM_CABLES       8
+  #define MIDI_NUM_CABLES       4
+  #define MIDI_TX_ENDPOINT      3
+  #define MIDI_TX_SIZE          64
+  #define MIDI_RX_ENDPOINT      4
+  #define MIDI_RX_SIZE          64
+  #define ENDPOINT1_CONFIG	ENDPOINT_TRANSIMIT_ONLY
+  #define ENDPOINT2_CONFIG	ENDPOINT_RECEIVE_ONLY
+  #define ENDPOINT3_CONFIG	ENDPOINT_TRANSIMIT_ONLY
+  #define ENDPOINT4_CONFIG	ENDPOINT_RECEIVE_ONLY
+
+#elif defined(USB_MIDI16)
+  #define VENDOR_ID		0x16C0
+  #define PRODUCT_ID		0x0485
+  #define BCD_DEVICE		0x0212
+  #define MANUFACTURER_NAME	{'T','e','e','n','s','y','d','u','i','n','o'}
+  #define MANUFACTURER_NAME_LEN	11
+  #define PRODUCT_NAME		{'T','e','e','n','s','y',' ','M','I','D','I','x','1','6'}
+  #define PRODUCT_NAME_LEN	14
+  #define EP0_SIZE		64
+  #define NUM_ENDPOINTS         4
+  #define NUM_USB_BUFFERS	16
+  #define NUM_INTERFACE		2
+  #define SEREMU_INTERFACE      1	// Serial emulation
+  #define SEREMU_TX_ENDPOINT    1
+  #define SEREMU_TX_SIZE        64
+  #define SEREMU_TX_INTERVAL    1
+  #define SEREMU_RX_ENDPOINT    2
+  #define SEREMU_RX_SIZE        32
+  #define SEREMU_RX_INTERVAL    2
+  #define MIDI_INTERFACE        0	// MIDI
+  #define MIDI_NUM_CABLES       16
   #define MIDI_TX_ENDPOINT      3
   #define MIDI_TX_SIZE          64
   #define MIDI_RX_ENDPOINT      4
   #define ENDPOINT4_CONFIG	ENDPOINT_TRANSIMIT_ONLY
   #define ENDPOINT5_CONFIG	ENDPOINT_RECEIVE_ONLY
 
-#elif defined(USB_MIDI_X8_SERIAL)
+#elif defined(USB_MIDI4_SERIAL)
   #define VENDOR_ID		0x16C0
   #define PRODUCT_ID		0x0489
-  #define BCD_DEVICE		0x0300
+  #define BCD_DEVICE		0x0211
   #define MANUFACTURER_NAME	{'T','e','e','n','s','y','d','u','i','n','o'}
   #define MANUFACTURER_NAME_LEN	11
-  #define PRODUCT_NAME		{'T','e','e','n','s','y',' ','M','I','D','I','x','8'}
+  #define PRODUCT_NAME		{'T','e','e','n','s','y',' ','M','I','D','I','x','4'}
   #define PRODUCT_NAME_LEN	13
   #define EP0_SIZE		64
   #define NUM_ENDPOINTS         5
   #define CDC_RX_SIZE           64
   #define CDC_TX_SIZE           64
   #define MIDI_INTERFACE        2	// MIDI
-  #define MIDI_NUM_CABLES       8
+  #define MIDI_NUM_CABLES       4
+  #define MIDI_TX_ENDPOINT      4
+  #define MIDI_TX_SIZE          64
+  #define MIDI_RX_ENDPOINT      5
+  #define MIDI_RX_SIZE          64
+  #define ENDPOINT1_CONFIG	ENDPOINT_TRANSIMIT_ONLY
+  #define ENDPOINT2_CONFIG	ENDPOINT_RECEIVE_ONLY
+  #define ENDPOINT3_CONFIG	ENDPOINT_TRANSIMIT_ONLY
+  #define ENDPOINT4_CONFIG	ENDPOINT_TRANSIMIT_ONLY
+  #define ENDPOINT5_CONFIG	ENDPOINT_RECEIVE_ONLY
+
+#elif defined(USB_MIDI16_SERIAL)
+  #define VENDOR_ID		0x16C0
+  #define PRODUCT_ID		0x0489
+  #define BCD_DEVICE		0x0212
+  #define MANUFACTURER_NAME	{'T','e','e','n','s','y','d','u','i','n','o'}
+  #define MANUFACTURER_NAME_LEN	11
+  #define PRODUCT_NAME		{'T','e','e','n','s','y',' ','M','I','D','I','x','1','6'}
+  #define PRODUCT_NAME_LEN	14
+  #define EP0_SIZE		64
+  #define NUM_ENDPOINTS         5
+  #define NUM_USB_BUFFERS	30
+  #define NUM_INTERFACE		3
+  #define CDC_IAD_DESCRIPTOR	1
+  #define CDC_STATUS_INTERFACE	0
+  #define CDC_DATA_INTERFACE	1	// Serial
+  #define CDC_ACM_ENDPOINT	1
+  #define CDC_RX_ENDPOINT       2
+  #define CDC_TX_ENDPOINT       3
+  #define CDC_ACM_SIZE          16
+  #define CDC_RX_SIZE           64
+  #define CDC_TX_SIZE           64
+  #define MIDI_INTERFACE        2	// MIDI
+  #define MIDI_NUM_CABLES       16
   #define MIDI_TX_ENDPOINT      4
   #define MIDI_TX_SIZE          64
   #define MIDI_RX_ENDPOINT      5
   #define ENDPOINT7_CONFIG	ENDPOINT_RECEIVE_ISOCHRONOUS
   #define ENDPOINT8_CONFIG	ENDPOINT_TRANSMIT_ISOCHRONOUS
 
-#elif defined(USB_MIDI_X8_AUDIO_SERIAL)
+#elif defined(USB_MIDI16_AUDIO_SERIAL)
   #define VENDOR_ID		0x16C0
   #define PRODUCT_ID		0x048A
-  #define BCD_DEVICE		0x0300
+  #define BCD_DEVICE		0x0212
   #define MANUFACTURER_NAME	{'T','e','e','n','s','y','d','u','i','n','o'}
   #define MANUFACTURER_NAME_LEN	11
-  #define PRODUCT_NAME		{'T','e','e','n','s','y',' ','M','I','D','I','x','8','/','A','u','d','i','o'}
-  #define PRODUCT_NAME_LEN	17
+  #define PRODUCT_NAME		{'T','e','e','n','s','y',' ','M','I','D','I','x','1','6','/','A','u','d','i','o'}
+  #define PRODUCT_NAME_LEN	20
   #define EP0_SIZE		64
   #define NUM_ENDPOINTS         8
   #define NUM_USB_BUFFERS	30
   #define CDC_RX_SIZE           64
   #define CDC_TX_SIZE           64
   #define MIDI_INTERFACE        2	// MIDI
-  #define MIDI_NUM_CABLES       8
+  #define MIDI_NUM_CABLES       16
   #define MIDI_TX_ENDPOINT      4
   #define MIDI_TX_SIZE          64
   #define MIDI_RX_ENDPOINT      5
   #define CDC_RX_SIZE           64
   #define CDC_TX_SIZE           64
   #define MIDI_INTERFACE        2	// MIDI
-  #define MIDI_NUM_CABLES       1
+  #define MIDI_NUM_CABLES       16
   #define MIDI_TX_ENDPOINT      3
   #define MIDI_TX_SIZE          64
   #define MIDI_RX_ENDPOINT      3