CODEWITHSUNDEEP
pythonpython-2.7python-3.xpyserialusbserial
yogesh kumar
yogesh kumar

Reputation: 325

Identifying USB to serial port given USB VID and PID using pyserial

I am new learner in python. I want create a web application for send sms or call using data card. I have been send sms using data card but my issue that if I use multiple data card connect at a time how can check which usb port working fine or not. So I want get usb serial number or usb pid or vid.

import serial.tools.list_ports;
reslt =  serial.tools.list_ports.comports()
print serial.tools.list_ports.ListPortInfo.name

Result :

[('/dev/ttyS31', 'ttyS31', 'n/a'), ('/dev/ttyS30', 'ttyS30', 'n/a'),
 ('/dev/ttyS29', 'ttyS29', 'n/a'), ('/dev/ttyS28', 'ttyS28', 'n/a'),
 ('/dev/ttyS27', 'ttyS27', 'n/a'), ('/dev/ttyS26', 'ttyS26', 'n/a'),
 ('/dev/ttyS25', 'ttyS25', 'n/a'), ('/dev/ttyS24', 'ttyS24', 'n/a'),
 ('/dev/ttyS23', 'ttyS23', 'n/a'), ('/dev/ttyS22', 'ttyS22', 'n/a'),
 ('/dev/ttyS21', 'ttyS21', 'n/a'), ('/dev/ttyS20', 'ttyS20', 'n/a'),
 ('/dev/ttyS19', 'ttyS19', 'n/a'), ('/dev/ttyS18', 'ttyS18', 'n/a'),
 ('/dev/ttyS17', 'ttyS17', 'n/a'), ('/dev/ttyS16', 'ttyS16', 'n/a'),
 ('/dev/ttyS15', 'ttyS15', 'n/a'), ('/dev/ttyS14', 'ttyS14', 'n/a'),
 ('/dev/ttyS13', 'ttyS13', 'n/a'), ('/dev/ttyS12', 'ttyS12', 'n/a'),
 ('/dev/ttyS11', 'ttyS11', 'n/a'), ('/dev/ttyS10', 'ttyS10', 'n/a'),
 ('/dev/ttyS9', 'ttyS9', 'n/a'), ('/dev/ttyS8', 'ttyS8', 'n/a'),
 ('/dev/ttyS7', 'ttyS7', 'n/a'), ('/dev/ttyS6', 'ttyS6', 'n/a'),
 ('/dev/ttyS5', 'ttyS5', 'n/a'), ('/dev/ttyS4', 'ttyS4', 'n/a'),
 ('/dev/ttyS3', 'ttyS3', 'n/a'), ('/dev/ttyS2', 'ttyS2', 'n/a'),
 ('/dev/ttyS1', 'ttyS1', 'n/a'), ('/dev/ttyS0', 'ttyS0', 'n/a'),
 ('/dev/ttyUSB3', 'Huawei Technologies Co., Ltd. Modem/Networkcard ',
  'USB VID:PID=12d1:1506'),
 ('/dev/ttyUSB2', 'Huawei Technologies Co., Ltd. Modem/Networkcard ',
  'USB VID:PID=12d1:1506'),
 ('/dev/ttyUSB0', 'Huawei Technologies Co., Ltd. Modem/Networkcard ',
  'USB VID:PID=12d1:1506')]

and for

import serial.tools.list_ports;
print [port for port in serial.tools.list_ports.comports() if port[2] != 'n/a']

Result :

[('/dev/ttyUSB3', 'Huawei Technologies Co., Ltd. Modem/Networkcard ',
  'USB VID:PID=12d1:1506'),
 ('/dev/ttyUSB2', 'Huawei Technologies Co., Ltd. Modem/Networkcard ',
  'USB VID:PID=12d1:1506'),
 ('/dev/ttyUSB0', 'Huawei Technologies Co., Ltd. Modem/Networkcard ',
  'USB VID:PID=12d1:1506')]

I am study http://pyserial.readthedocs.org/en/latest/tools.html

Please help me how can get usb VID, Usb serial number etc.

Upvotes: 2

Views: 17658

Answers (1)

Alejandro Bertinelli
Alejandro Bertinelli

Reputation: 545

As @Peter said in his comment, in the newer versions of PySerial (current one is 3.4) you can get the port information easily, such as description, PID, VID, HWID, name, serial number, etc.

For example:

for port in serial.tools.list_ports.comports():
    print(port.hwid)

Upvotes: 3

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