Support request to add Teensy 3.6 to libmtp

[Dean Smart]

Please add the Teensy 3.6 to the libmtp library. The device is simply not detected.

lsb_release -rd
Description: Ubuntu 18.04.1 LTS
Release: 18.04

mtp-detect
libmtp version: 1.1.16
Listing raw device(s)
   No raw devices found.

lsusb -v
Bus 006 Device 006: ID 16c0:04d1 Van Ooijen Technische Informatica
Device Descriptor:
  bLength 18
  bDescriptorType 1
  bcdUSB 1.10
  bDeviceClass 0 (Defined at Interface level)
  bDeviceSubClass 0
  bDeviceProtocol 0
  bMaxPacketSize0 64
  idVendor 0x16c0 Van Ooijen Technische Informatica
  idProduct 0x04d1
  bcdDevice 2.77
  iManufacturer 1 Teensyduino
  iProduct 2 Teensy MTP Disk
  iSerial 3 4777660
  bNumConfigurations 1
  Configuration Descriptor:
    bLength 9
    bDescriptorType 2
    wTotalLength 105
    bNumInterfaces 2
    bConfigurationValue 1
    iConfiguration 0
    bmAttributes 0xc0
      Self Powered
    MaxPower 100mA
    Interface Association:
      bLength 8
      bDescriptorType 11
      bFirstInterface 0
      bInterfaceCount 2
      bFunctionClass 2 Communications
      bFunctionSubClass 2 Abstract (modem)
      bFunctionProtocol 1 AT-commands (v.25ter)
      iFunction 4 MTP
    Interface Descriptor:
      bLength 9
      bDescriptorType 4
      bInterfaceNumber 0
      bAlternateSetting 0
      bNumEndpoints 1
      bInterfaceClass 2 Communications
      bInterfaceSubClass 2 Abstract (modem)
      bInterfaceProtocol 1 AT-commands (v.25ter)
      iInterface 0
      CDC Header:
        bcdCDC 1.10
      CDC Call Management:
        bmCapabilities 0x01
          call management
        bDataInterface 1
      CDC ACM:
        bmCapabilities 0x06
          sends break
          line coding and serial state
      CDC Union:
        bMasterInterface 0
        bSlaveInterface 1
      Endpoint Descriptor:
        bLength 7
        bDescriptorType 5
        bEndpointAddress 0x81 EP 1 IN
        bmAttributes 3
          Transfer Type Interrupt
          Synch Type None
          Usage Type Data
        wMaxPacketSize 0x0010 1x 16 bytes
        bInterval 64
    Interface Descriptor:
      bLength 9
      bDescriptorType 4
      bInterfaceNumber 1
      bAlternateSetting 0
      bNumEndpoints 2
      bInterfaceClass 10 CDC Data
      bInterfaceSubClass 0 Unused
      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 0x0040 1x 64 bytes
        bInterval 0
      Endpoint Descriptor:
        bLength 7
        bDescriptorType 5
        bEndpointAddress 0x83 EP 3 IN
        bmAttributes 2
          Transfer Type Bulk
          Synch Type None
          Usage Type Data
        wMaxPacketSize 0x0040 1x 64 bytes
        bInterval 0
Device Status: 0x0000
  (Bus Powered)

Teensy website
https://www.pjrc.com/teensy/index.html

MTP library for Teensy
https://github.com/yoonghm/MTP
https://forum.pjrc.com/threads/43050-MTP-Responder-Contribution

Thank you for your help. If you require more information, please ask.

[Dean Smart (xenington)]

This issue has now been solved. See:

https://forum.pjrc.com/threads/43050-MTP-Responder-Contribution?p=226616&posted=1#post226616

The problem was a bug in the Teensy library.

[Dean Smart (xenington)]

Sorry, gave a link to a post instead of the main thread:

https://forum.pjrc.com/threads/43050-MTP-Responder-Contribution