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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

struct rio_mport * port

Master port to issue transaction

int local

Indicate a local master port or remote device access

u16 destid

Destination ID of the device

u8 hopcount

Number of switch hops to the device

int 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

September 2017 Kernel Hackers Manual 4.12