sysfs-class-uwb_rc

最新版本的Linux内核

What:           /sys/class/uwb_rc
Date:           July 2008
KernelVersion:  2.6.27
Contact:        [e-mail]
Description:
                Interfaces for WiMedia Ultra Wideband Common Radio
                Platform (UWB) radio controllers.

                Familiarity with the ECMA-368 'High Rate Ultra
                Wideband MAC and PHY Specification' is assumed.

What:           /sys/class/uwb_rc/beacon_timeout_ms
Date:           July 2008
KernelVersion:  2.6.27
Description:
                If no beacons are received from a device for at least
                this time, the device will be considered to have gone
                and it will be removed.  The default is 3 superframes
                (~197 ms) as required by the specification.

What:           /sys/class/uwb_rc/uwbN/
Date:           July 2008
KernelVersion:  2.6.27
Contact:        [e-mail]
Description:
                An individual UWB radio controller.

What:           /sys/class/uwb_rc/uwbN/beacon
Date:           July 2008
KernelVersion:  2.6.27
Contact:        [e-mail]
Description:
                Write:

                <channel>

                to force a specific channel to be used when beaconing,
                or, if <channel> is -1, to prohibit beaconing.  If
                <channel> is 0, then the default channel selection
                algorithm will be used.  Valid channels depends on the
                radio controller's supported band groups.

                Reading returns the currently active channel, or -1 if
                the radio controller is not beaconing.

What:           /sys/class/uwb_rc/uwbN/scan
Date:           July 2008
KernelVersion:  2.6.27
Contact:        [e-mail]
Description:
                Write:

                <channel> <type> [<bpst offset>]

                to start (or stop) scanning on a channel.  <type> is one of:
                    0 - scan
                    1 - scan outside BP
                    2 - scan while inactive
                    3 - scanning disabled
                    4 - scan (with start time of <bpst offset>)

What:           /sys/class/uwb_rc/uwbN/mac_address
Date:           July 2008
KernelVersion:  2.6.27
Contact:        [e-mail]
Description:
                The EUI-48, in colon-separated hex octets, for this
                radio controller.  A write will change the radio
                controller's EUI-48 but only do so while the device is
                not beaconing or scanning.

What:           /sys/class/uwb_rc/uwbN/wusbhc
Date:           July 2008
KernelVersion:  2.6.27
Contact:        [e-mail]
Description:
                A symlink to the device (if any) of the WUSB Host
                Controller PAL using this radio controller.

What:           /sys/class/uwb_rc/uwbN/<EUI-48>/
Date:           July 2008
KernelVersion:  2.6.27
Contact:        [e-mail]
Description:
                A neighbour UWB device that has either been detected
                as part of a scan or is a member of the radio
                controllers beacon group.

What:           /sys/class/uwb_rc/uwbN/<EUI-48>/BPST
Date:           July 2008
KernelVersion:  2.6.27
Contact:        [e-mail]
Description:
                The time (using the radio controllers internal 1 ms
                interval superframe timer) of the last beacon from
                this device was received.

What:           /sys/class/uwb_rc/uwbN/<EUI-48>/DevAddr
Date:           July 2008
KernelVersion:  2.6.27
Contact:        [e-mail]
Description:
                The current DevAddr of this device in colon separated
                hex octets.

What:           /sys/class/uwb_rc/uwbN/<EUI-48>/EUI_48
Date:           July 2008
KernelVersion:  2.6.27
Contact:        [e-mail]
Description:

                The EUI-48 of this device in colon separated hex
                octets.

What:           /sys/class/uwb_rc/uwbN/<EUI-48>/BPST
Date:           July 2008
KernelVersion:  2.6.27
Contact:        [e-mail]
Description:

What:           /sys/class/uwb_rc/uwbN/<EUI-48>/IEs
Date:           July 2008
KernelVersion:  2.6.27
Contact:        [e-mail]
Description:
                The latest IEs included in this device's beacon, in
                space separated hex octets with one IE per line.

What:           /sys/class/uwb_rc/uwbN/<EUI-48>/LQE
Date:           July 2008
KernelVersion:  2.6.27
Contact:        [e-mail]
Description:
                Link Quality Estimate - the Signal to Noise Ratio
                (SNR) of all packets received from this device in dB.
                This gives an estimate on a suitable PHY rate. Refer
                to [ECMA-368] section 13.3 for more details.

What:           /sys/class/uwb_rc/uwbN/<EUI-48>/RSSI
Date:           July 2008
KernelVersion:  2.6.27
Contact:        [e-mail]
Description:
                Received Signal Strength Indication - the strength of
                the received signal in dB.  LQE is a more useful
                measure of the radio link quality.