1RIO_MPORT_GET_FEATUR(9)    RapidIO driver interface    RIO_MPORT_GET_FEATUR(9)
2
3
4

NAME

6       rio_mport_get_feature - query for devices' extended features
7

SYNOPSIS

9       u32 rio_mport_get_feature(struct rio_mport * port, int local,
10                                 u16 destid, u8 hopcount, int ftr);
11

ARGUMENTS

13       port
14           Master port to issue transaction
15
16       local
17           Indicate a local master port or remote device access
18
19       destid
20           Destination ID of the device
21
22       hopcount
23           Number of switch hops to the device
24
25       ftr
26           Extended feature code
27

DESCRIPTION

29       Tell if a device supports a given RapidIO capability. Returns the
30       offset of the requested extended feature block within the device's RIO
31       configuration space or 0 in case the device does not support it.
32       Possible values for ftr:
33
34       RIO_EFB_PAR_EP_ID LP/LVDS EP Devices
35
36       RIO_EFB_PAR_EP_REC_ID LP/LVDS EP Recovery Devices
37
38       RIO_EFB_PAR_EP_FREE_ID LP/LVDS EP Free Devices
39
40       RIO_EFB_SER_EP_ID LP/Serial EP Devices
41
42       RIO_EFB_SER_EP_REC_ID LP/Serial EP Recovery Devices
43
44       RIO_EFB_SER_EP_FREE_ID LP/Serial EP Free Devices
45

AUTHOR

47       Matt Porter <mporter@kernel.crashing.org>, <mporter@mvista.com>
48           Author.
49

51Kernel Hackers Manual 3.10         June 2019           RIO_MPORT_GET_FEATUR(9)
Impressum