centos man page for dev_driver_string

DEV_DRIVER_STRING(9)					   Device drivers infrastructure				      DEV_DRIVER_STRING(9)

NAME
       dev_driver_string - Return a device's driver name, if at all possible

SYNOPSIS
       const char * dev_driver_string(const struct device * dev);

ARGUMENTS
       dev
	   struct device to get the name of

DESCRIPTION
       Will return the device's driver's name if it is bound to a device. If the device is not bound to a driver, it will return the name of the
       bus it is attached to. If it is not attached to a bus either, an empty string will be returned.

COPYRIGHT
Kernel Hackers Manual 3.10					     June 2014						      DEV_DRIVER_STRING(9)