centos man page for rio_get_device

RIO_GET_DEVICE(9)					     RapidIO driver interface						 RIO_GET_DEVICE(9)

NAME
       rio_get_device - Begin or continue searching for a RIO device by vid/did

SYNOPSIS
       struct rio_dev * rio_get_device(u16 vid, u16 did, struct rio_dev * from);

ARGUMENTS
       vid
	   RIO vid to match or RIO_ANY_ID to match all vids

       did
	   RIO did to match or RIO_ANY_ID to match all dids

       from
	   Previous RIO device found in search, or NULL for new search

DESCRIPTION
       Iterates through the list of known RIO devices. If a RIO device is found with a matching vid and did, the reference count to the device is
       incrememted and a pointer to its device structure is returned. Otherwise, NULL is returned. A new search is initiated by passing NULL to
       the from argument. Otherwise, if from is not NULL, searches continue from next device on the global list. The reference count for from is
       always decremented if it is not NULL.

AUTHOR
       Matt Porter <mporter@kernel.crashing.org>, <mporter@mvista.com>
	   Author.

COPYRIGHT
Kernel Hackers Manual 3.10					     June 2014							 RIO_GET_DEVICE(9)