I have the following python code where I am trying to open the device /dev/ttyUSB5 using minicom:
import serial
import os
b1_ser_port_num=5
cmd="/dev/ttyUSB"+str(b1_ser_port_num)
print "We are now accessing the serial port : ",cmd
os.system("sudo minicom -D "+cmd+" -b 115200\n")
The above still throws the password prompt at the terminal when I run it. Before doing the above, I had made sure that I added the user to the sudo group by doing the following:
user4@user-pc-4:~$ sudo gpasswd -a user4 sudo
[sudo] password for user4:
Adding user user4 to group sudo
I also added the following to /etc/sudoers file to ensure that user4 doesn't get prompted for password in order to get access to the serial port /dev/ttyUSB5 through minicom :
user4 ALL=(ALL) NOPASSWD:/usr/bin/minicom
What is going wrong here? How can I disable the password prompt for a specific program without giving the user a complete privilege? I have a feeling I'm missing some piece of information - either with /etc/sudoers or with /dev/ttyUSB5.
