What would be the C++ equivalent of this bash script to list USB devices?

Question

Below Bash script lists serial port along with USB device friendly name. I'd like to do exact same thing but in C++ and without using dependency like libusb.

#!/bin/bash
for sysdevpath in $(find /sys/bus/usb/devices/usb*/ -name dev); do
    (
        syspath="${sysdevpath%/dev}"
        devname="$(udevadm info -q name -p $syspath)"
        [[ "$devname" == "bus/"* ]] && continue
        eval "$(udevadm info -q property --export -p $syspath)"
        [[ -z "$ID_SERIAL" ]] && continue
        echo "/dev/$devname "$ID_SERIAL""
    )
done

I have encountered other C/C++ code that use various APIs but none was able to get friendly name and /dev/ttyPort like above script. For example, output of above script is:

/dev/input/event13 Razer_Razer_Mamba_Tournament_Edition
/dev/input/event14 Razer_Razer_Mamba_Tournament_Edition
/dev/input/mouse0 Razer_Razer_Mamba_Tournament_Edition
/dev/input/event4 Razer_Razer_Mamba_Tournament_Edition
/dev/video0 Chicony_Electronics_Co._Ltd._Integrated_Camera_0001
/dev/input/event10 Chicony_Electronics_Co._Ltd._Integrated_Camera_0001
/dev/ttyACM0 3D_Robotics_PX4_FMU_v2.x_0

Can't you use a [system command](http://en.cppreference.com/w/cpp/utility/program/system) to call this script internally from C++? — The Quantum Physicist, Jul 26 '17 at 08:10
Have you checked the `udevadm` sources for how it gets `ID_SERIAL`? — eerorika, Jul 26 '17 at 08:21

What would be the C++ equivalent of this bash script to list USB devices?

0 Answers0