info.bash

$ lsusb
Bus 005 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 009 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 008 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 004 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 007 Device 004: ID 0944:0115 KORG, Inc. 
Bus 007 Device 002: ID 0461:4d51 Primax Electronics, Ltd 0Y357C PMX-MMOCZUL (B) [Dell Laser Mouse]
Bus 007 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 001 Device 004: ID 1235:800c Focusrite-Novation Scarlett 18i20
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 006 Device 002: ID 03f0:034a HP, Inc Elite Keyboard
Bus 006 Device 003: ID 086a:0001 Emagic Soft- und Hardware GmbH Unitor8
Bus 006 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 003 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub

$ midi -l
Dir Device    Name
IO  hw:2,0    MIDI-1 Hoontech/STA DSP24 2
IO  hw:2,1    MIDI-2 Hoontech/STA DSP24 2
IO  hw:3,0,0  nanoKEY2 MIDI 1
IO  hw:4,0,0  USB Device 0x86a:0x01 MIDI 1
IO  hw:4,0,1  USB Device 0x86a:0x01 MIDI 2
IO  hw:4,0,2  USB Device 0x86a:0x01 MIDI 3
IO  hw:4,0,3  USB Device 0x86a:0x01 MIDI 4
IO  hw:4,0,4  USB Device 0x86a:0x01 MIDI 5
IO  hw:4,0,5  USB Device 0x86a:0x01 MIDI 6
IO  hw:4,0,6  USB Device 0x86a:0x01 MIDI 7
IO  hw:4,0,7  USB Device 0x86a:0x01 MIDI 8
IO  hw:4,0,8  USB Device 0x86a:0x01 Broadcast
IO  hw:5,0,0  Scarlett 18i20 USB MIDI 1

$lsusb -d086a:0001 -v
Bus 006 Device 003: ID 086a:0001 Emagic Soft- und Hardware GmbH Unitor8
Couldn't open device, some information will be missing
Device Descriptor:
  bLength                18
  bDescriptorType         1
  bcdUSB               1.00
  bDeviceClass          255 Vendor Specific Class
  bDeviceSubClass         0 
  bDeviceProtocol       255 
  bMaxPacketSize0         8
  idVendor           0x086a Emagic Soft- und Hardware GmbH
  idProduct          0x0001 Unitor8
  bcdDevice            0.01
  iManufacturer           0 
  iProduct                0 
  iSerial                 0 
  bNumConfigurations      1
  Configuration Descriptor:
    bLength                 9
    bDescriptorType         2
    wTotalLength       0x0049
    bNumInterfaces          3
    bConfigurationValue     1
    iConfiguration          0 
    bmAttributes         0x40
      (Missing must-be-set bit!)
      Self Powered
    MaxPower                0mA
    Interface Descriptor:
      bLength                 9
      bDescriptorType         4
      bInterfaceNumber        0
      bAlternateSetting       0
      bNumEndpoints           0
      bInterfaceClass       255 Vendor Specific Class
      bInterfaceSubClass    255 Vendor Specific Subclass
      bInterfaceProtocol      0 
      iInterface              0 
    Interface Descriptor:
      bLength                 9
      bDescriptorType         4
      bInterfaceNumber        1
      bAlternateSetting       0
      bNumEndpoints           0
      bInterfaceClass       255 Vendor Specific Class
      bInterfaceSubClass    255 Vendor Specific Subclass
      bInterfaceProtocol      0 
      iInterface              0 
    Interface Descriptor:
      bLength                 9
      bDescriptorType         4
      bInterfaceNumber        2
      bAlternateSetting       1
      bNumEndpoints           2
      bInterfaceClass       255 Vendor Specific Class
      bInterfaceSubClass    255 Vendor Specific Subclass
      bInterfaceProtocol      0 
      iInterface              0 
      Endpoint Descriptor:
        bLength                 7
        bDescriptorType         5
        bEndpointAddress     0x02  EP 2 OUT
        bmAttributes            3
          Transfer Type            Interrupt
          Synch Type               None
          Usage Type               Data
        wMaxPacketSize     0x0020  1x 32 bytes
        bInterval               1
      Endpoint Descriptor:
        bLength                 7
        bDescriptorType         5
        bEndpointAddress     0x81  EP 1 IN
        bmAttributes            3
          Transfer Type            Interrupt
          Synch Type               None
          Usage Type               Data
        wMaxPacketSize     0x0020  1x 32 bytes
        bInterval               1
    Interface Descriptor:
      bLength                 9
      bDescriptorType         4
      bInterfaceNumber        2
      bAlternateSetting       0
      bNumEndpoints           2
      bInterfaceClass       255 Vendor Specific Class
      bInterfaceSubClass    255 Vendor Specific Subclass
      bInterfaceProtocol      0 
      iInterface              0 
      Endpoint Descriptor:
        bLength                 7
        bDescriptorType         5
        bEndpointAddress     0x02  EP 2 OUT
        bmAttributes            2
          Transfer Type            Bulk
          Synch Type               None
          Usage Type               Data
        wMaxPacketSize     0x0020  1x 32 bytes
        bInterval               1
      Endpoint Descriptor:
        bLength                 7
        bDescriptorType         5
        bEndpointAddress     0x81  EP 1 IN
        bmAttributes            2
          Transfer Type            Bulk
          Synch Type               None
          Usage Type               Data
        wMaxPacketSize     0x0020  1x 32 bytes
        bInterval               1