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RIO_MPORT_GET_FEATUR(9) RapidIO driver interface RIO_MPORT_GET_FEATUR(9)

NAME

rio_mport_get_feature - query for devices' extended features

SYNOPSIS

u32 rio_mport_get_feature(struct rio_mport * port, int local, u16 destid, u8 hopcount, int ftr);

ARGUMENTS

port
Master port to issue transaction

local

Indicate a local master port or remote device access

destid

Destination ID of the device

hopcount

Number of switch hops to the device

ftr

Extended feature code

DESCRIPTION

Tell if a device supports a given RapidIO capability. Returns the offset of the requested extended feature block within the device's RIO configuration space or 0 in case the device does not support it.

AUTHOR

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

COPYRIGHT

April 2019 Kernel Hackers Manual 4.9.