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

     fwcontrol - FireWire control utility

     fwcontrol [-u bus_num] [-prt] [-c node] [-d node] [-o node] [-s node]
               [-l file] [-f node] [-g gap_count] [-b pri_req] [-M mode]
               [-R filename] [-S filename] [-m EUI64 | hostname]

     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 that are/were connected to the bus.

     The following options are available:

     -u bus_num
             Specify the FireWire bus number to be operated on.  The default
             is bus 0.

     -r      Initiate bus reset.

     -t      Show the topology map.

     -p      Dump PHY registers.

     -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 the RESET_START register on the node.

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

     -f node
             Force specified node to be the root node on the next bus reset by
             sending a PHY config packet.  Valid values are 0 - 63.

     -g gap_count
             Broadcast new gap_count by sending a PHY_config packet.  By
             default this value is 63 on all nodes.  Valid values are 0 - 63.

     -i pri_req
             Set the PRIORITY_BUDGET register on all supported nodes.

     -M mode
             Explicitly specify either dv or mpeg mode for the incoming
             stream.  Only meaningful in case of and must precede the -R
             option.  If not specified, the program will try to guess.  In
             case of ``format 0x20'' error, try to force the ``mpeg'' mode.

     -R filename
             Receive DV or MPEG TS stream and dump it to a file.  Use ^C to
             stop the receiving.  Some DV cameras seem not to send the stream
             if a bus manager exists.  If it is impossible to 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 FreeBSD
             Ports Collection.  Resulting MPEG TS stream can be played and
             sent over a network using the VideoLAN vlc tool in the FreeBSD
             Ports Collection.  The stream can be piped directly to vlc, see

     -S filename
             Send a DV file as isochronous stream.

     -m EUI64 | hostname
             Set default fwmem target.  Hostname will be converted to EUI64
             using eui64(5).


     Each DV frame has a fixed size and it is easy to edit the frame order.

           fwcontrol -R original.dv

     Receive a DV stream with DV camera attached.

           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''.

           fwcontrol -R file.m2t

     Receive an MPEG TS stream from a camera producing MPEG transport stream.
     This has been tested with SONY HDR-FX1E camera that produces HD MPEG-2
     stream at 25 Mbps bandwidth.

     To send the stream from the camera over the network using TCP (which
     surprisingly works better with vlc), you can use
           fwcontrol -R - | nc 9000
     with netcat from ports and to receive the stream, use
           nc -l -p 9000 | vlc -

     To netcast via UDP, you need to use buffer program from ports, since vlc
     is not fast enough to read UDP packets from buffers and thus it
     experiences dropouts when run directly.  The sending side can use
           fwcontrol -R - | nc 9000
     and to receive the stream, use
           nc -l -u -p 9000 | buffer -s 10k -b 1000 -m 20m -p 5 | vlc -

     For more information on how to work with vlc see its docs.

     mplayer(1), vlc(1), firewire(4), fwe(4), fwip(4), fwohci(4), sbp(4)

     The fwcontrol utility first appeared in FreeBSD 5.0.

     Hidetoshi Shimokawa <[email protected]>
     Petr Holub <[email protected]> (MPEG TS mode)

     This utility is still under development and provided for debugging
     purposes.  Especially MPEG TS reception support is very rudimental and
     supports only high-bandwidth MPEG-2 streams (fn field in CIP header
     equals 3).

FreeBSD 11.1-RELEASE-p4       September 12, 2008       FreeBSD 11.1-RELEASE-p4
Command Section