what new ID should be try ,,i don't have idea ......Please guess and reply???
Note: PJRC I purchased a certain number of PIDs, I am not sure how many he still has left.
If you ever look up VIDs, like using:
You will see output like:
That is the VID of 0x16c0 is owned by Van Ooijen, but I believe he was selling of parts of it as there is only so many
possible VIDs...
The other thing I ran into when testing MTP, was on Linux machines with Paul's udev.rules
```
#
# The latest version of this file may be found at:
#
http://www.pjrc.com/teensy/00-teensy.rules
#
# This file must be placed at:
#
# /etc/udev/rules.d/00-teensy.rules (preferred location)
# or
# /lib/udev/rules.d/00-teensy.rules (req'd on some broken systems)
#
# To install, type this command in a terminal:
# sudo cp 00-teensy.rules /etc/udev/rules.d/00-teensy.rules
#
# After this file is installed, physically unplug and reconnect Teensy.
#
ATTRS{idVendor}=="16c0", ATTRS{idProduct}=="04*", ENV{ID_MM_DEVICE_IGNORE}="1", ENV{ID_MM_PORT_IGNORE}="1"
ATTRS{idVendor}=="16c0", ATTRS{idProduct}=="04[789a]*", ENV{MTP_NO_PROBE}="1"
KERNEL=="ttyACM*", ATTRS{idVendor}=="16c0", ATTRS{idProduct}=="04*", MODE:="0666", RUN:="/bin/stty -F /dev/%k raw -echo"
KERNEL=="hidraw*", ATTRS{idVendor}=="16c0", ATTRS{idProduct}=="04*", MODE:="0666"
SUBSYSTEMS=="usb", ATTRS{idVendor}=="16c0", ATTRS{idProduct}=="04*", MODE:="0666"
KERNEL=="hidraw*", ATTRS{idVendor}=="1fc9", ATTRS{idProduct}=="013*", MODE:="0666"
SUBSYSTEMS=="usb", ATTRS{idVendor}=="1fc9", ATTRS{idProduct}=="013*", MODE:="0666"
#
# If you share your linux system with other users, or just don't like the
# idea of write permission for everybody, you can replace MODE:="0666" with
# OWNER:="yourusername" to create the device owned by you, or with
# GROUP:="somegroupname" and mange access using standard unix groups.
#
# ModemManager tends to interfere with USB Serial devices like Teensy.
# Problems manifest as the Arduino Serial Monitor missing some incoming
# data, and "Unable to open /dev/ttyACM0 for reboot request" when
# uploading. If you experience these problems, disable or remove
# ModemManager from your system. If you must use a modem, perhaps
# try disabling the "MM_FILTER_RULE_TTY_ACM_INTERFACE" ModemManager
# rule. Changing ModemManager's filter policy from "strict" to "default"
# may also help. But if you don't use a modem, completely removing
# the troublesome ModemManager is the most effective solution.
```
That there are ranges of PIDs that are specifically told not to try MTP on:
Code:
ATTRS{idVendor}=="16c0", ATTRS{idProduct}=="04[789a]*", ENV{MTP_NO_PROBE}="1"
So for example:
Code:
#define VENDOR_ID 0x16C0
#define PRODUCT_ID 0x04D1
Works, that is it does not set the MTP_NO_PROBE,
But:
Code:
#elif defined(USB_MIDI16_AUDIO_SERIAL)
#define VENDOR_ID 0x16C0
#define PRODUCT_ID 0x048A
Does match and as such MTP won't work with it...