fwcontrol man page on FreeBSD

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

NAME
     fwcontrol — FireWire control utility

SYNOPSIS
     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]

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 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
	     EXAMPLES.

     -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).

FILES
     /dev/fw0.0

EXAMPLES
     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 sup‐
     prisingly works better with vlc), you can use
	   fwcontrol -R - | nc 192.168.10.11 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 experi‐
     ences dropouts when run directly.	The sending side can use
	   fwcontrol -R - | nc 192.168.10.11 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.

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

HISTORY
     The fwcontrol utility first appeared in FreeBSD 5.0.

AUTHORS
     Hidetoshi Shimokawa ⟨simokawa@FreeBSD.org⟩
     Petr Holub ⟨hopet@ics.muni.cz⟩ - MPEG TS mode.

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

BSD			      September 12, 2008			   BSD
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