usb_get_dev(9) centos man page | unix.com

USB_GET_DEV(9)							   USB Core APIs						    USB_GET_DEV(9)

NAME
       usb_get_dev - increments the reference count of the usb device structure

SYNOPSIS
       struct usb_device * usb_get_dev(struct usb_device * dev);

ARGUMENTS
       dev
	   the device being referenced

DESCRIPTION
       Each live reference to a device should be refcounted.

       Drivers for USB interfaces should normally record such references in their probe methods, when they bind to an interface, and release them
       by calling usb_put_dev, in their disconnect methods.

RETURN
       A pointer to the device with the incremented reference counter.

COPYRIGHT
Kernel Hackers Manual 3.10					     June 2014							    USB_GET_DEV(9)