Scroll to navigation

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

u16 vid

RIO vid to match or RIO_ANY_ID to match all vids

u16 did

RIO did to match or RIO_ANY_ID to match all dids

struct rio_dev * 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

July 2017 Kernel Hackers Manual 4.12