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


NAME

     fwcontrol -- FireWire control utility


SYNOPSIS

     fwcontrol [-rt] [-c node] [-d node] [-o node] [-s 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 FireWire subsystem.  Without options, fwcontrol will out-
     put 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.

     -o node
             Send a link-on phy packet to the node.

     -s node
             Write to RESET_START register on the node.

     -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 isochronous
             header and CIP header. It can be handled by libdv in the
             dports(7) collection.

     -S filename
             Send a DV file as isochronous stream.


FILES

     /dev/fw0


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'.


SEE ALSO

     firewire(4), fwe(4), fwohci(4), sbp(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.

DragonFly 3.5                  December 30, 2002                 DragonFly 3.5

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