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FWCONTROL(8)            FreeBSD System Manager's Manual           FWCONTROL(8)

NAME
     fwcontrol - FireWire control utility

SYNOPSIS
     fwcontrol [-rt] [-c node] [-d node] [-l file] [-g gap_count] [-b pri_req]
               [-R filename] [-S filename]

DESCRIPTION
     The fwcontrol utility is designed to provide a way for users to access
     and control the FreeBSD FireWire subsystem.  Without options, fwcontrol
     will output a list of devices those are/were connected to the bus.

     -r      Initiate bus reset.

     -t      Show the topology map.

     -c node
             Show the configuration ROM on the node.

     -d node
             Hex dump of the configuration ROM.

     -l file
             Load hex dump file of the configuration ROM and parse it.

     -g gap_count
             Broadcast gap_count by phy_config packet.

     -i pri_req
             Set PRIORITY_BUDGET register on all supported nodes.

     -R filename
             Receive DV stream and dump it to a file. Use Ctl-C to stop the
             receiving.  Some DV cameras seem not to send the stream if a bus
             manager exits.  If you cannot get the stream, try the following
             commands.

                   sysctl hw.firewire.try_bmr=0; fwcontrol -r

             The resulting file contains raw DV data excluding isochronus
             header and CIP header. It can be handled by libdv in the ports
             collection.

     -S filename
             Send a DV file as isochronus stream.

EXAMPLES
     Each DV frame has fixed size and it is easy to edit those frame order.

           fwcontrol -R original.dv

     Receive stream.

           dd if=original.dv of=first.dv bs=120000 count=30

     Get first 30 frames(NTSC).

           dd if=original.dv of=second.dv bs=120000 skip=30 count=30

     Get second 30 frames(NTSC).

           cat second.dv first.dv | fwcontrol -S /dev/stdin

     Swap first and second 30 frames and send them to DV recorder.

     For PAL, replace 'bs=120000' with 'bs=144000'.

FILES
     /dev/fw0

SEE ALSO
     firewire(4), fwohci(4), sbp(4), fwe(4)

HISTORY
     The fwcontrol utility first appeared in FreeBSD 5.0.

AUTHORS
     Hidetoshi Shimokawa <simokawa@FreeBSD.org>

BUGS
     This utility is still under development and provided for debug purpose.

FreeBSD 11.0-PRERELEASE        December 30, 2002       FreeBSD 11.0-PRERELEASE

NAME | SYNOPSIS | DESCRIPTION | EXAMPLES | FILES | SEE ALSO | HISTORY | AUTHORS | BUGS

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