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.
Possible values for ftr:
RIO_EFB_PAR_EP_ID LP/LVDS EP Devices
RIO_EFB_PAR_EP_REC_ID LP/LVDS EP Recovery Devices
RIO_EFB_PAR_EP_FREE_ID LP/LVDS EP Free Devices
RIO_EFB_SER_EP_ID LP/Serial EP Devices
RIO_EFB_SER_EP_REC_ID LP/Serial EP Recovery Devices
RIO_EFB_SER_EP_FREE_ID LP/Serial EP Free Devices
AUTHOR
- Matt Porter <mporter@kernel.crashing.org>, <mporter@mvista.com>
- Author.