Detect USB Hub and device information programatically
 

I need to list existing USB hub and the devices connected in the hub.

I can able to print the USB Hub and devices connected in hub from terminal using the commands
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lsusb
lsusb -v


How can I do this programmatically. Is there any C++ classes available to use in my Qt application.

Start a spawn process
"lsusb -v > result.txt" or
"lsusb -v" to the output "tty" or other ?
Im not a specialist in programming (I had done it in FORTRAN 18years ago..).