1RIO_MPORT_GET_FEATUR(9)            Internals           RIO_MPORT_GET_FEATUR(9)
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NAME

6       rio_mport_get_feature - query for devices´ extended features
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SYNOPSIS

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

13       port
14           Master port to issue transaction
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16       local
17           Indicate a local master port or remote device access
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19       destid
20           Destination ID of the device
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22       hopcount
23           Number of switch hops to the device
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25       ftr
26           Extended feature code
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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:
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34       RIO_EFB_PAR_EP_ID LP/LVDS EP Devices
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36       RIO_EFB_PAR_EP_REC_ID LP/LVDS EP Recovery Devices
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38       RIO_EFB_PAR_EP_FREE_ID LP/LVDS EP Free Devices
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40       RIO_EFB_SER_EP_ID LP/Serial EP Devices
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42       RIO_EFB_SER_EP_REC_ID LP/Serial EP Recovery Devices
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44       RIO_EFB_SER_EP_FREE_ID LP/Serial EP Free Devices
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AUTHOR

47       Matt Porter <mporter@kernel.crashing.org>, <mporter@mvista.com>
48           Author.
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51Kernel Hackers Manual 2.6.         June 2019           RIO_MPORT_GET_FEATUR(9)
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