How can I find the driver of a device?

[sara sir]

Hello,

I'm using OSX El Capitan 10,11,5. When I plug in a device in my Mac I want to find(see) the driver for that device ?
When I run
ioreg -c IOSerialBSDClient | grep usb
in the terminal I can see that the device is recognised as a usbmodem.

Thanks

 

[oldscribe]

Hi and welcome,

Most of the time they can be found in: System/Library/Extensions