Digi TX54, User Manual

Page: 717 / 1087

Applications Use the Human Interface Device (HID) module
TX54 User Guide 717
5. Use the vender_id and product_id to return specific information about the keyboard, or to
read input from the keyboard:
>>>
hid.Device(1008,36).product
This returns information about the keyboard:
'Basic USB Keyboard'
6. To read input from the keyboard:
>>>
hid.Device(1008,36).read(64)
Which returns:
b'\x00\x00,\x00\x00\x00\x00\x00'
7. Use Ctrl-D to exit the Python session. You can also exit the session using exit() or quit() .
Help for the hid module
Get help for the hid module:
1. Log into the TX54 command line as a user with shell access.
Depending on your device configuration, you may be presented with an Access selection
menu . Type shell to access the device shell.
2. At the shell prompt, use the python command with no parameters to enter an interactive
Python session:
# python
Python 3.6.13 (default, May
9 2021, 22:49:59)
[GCC 8.3.0] on linux
Type "help", "copyright", "credits" or "license" for more information.
>>>
3. Import the hid module:
>>> import hid
>>>
4. Use the help command with hid :
>>> help(hid)
Help on package hid:
NAME
hid
PACKAGE CONTENTS
CLASSES
_ctypes.Structure(_ctypes._CData)