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

NAME

     fwctl -- IEEE1394 control utility

SYNOPSIS

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

DESCRIPTION

     The fwctl utility is designed to provide a way for users to access and control the NetBSD IEEE1394 subsystem.  Without options, fwctl will
     output a list of devices that are/were connected to the bus.

     The following options are available:

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

	   -c node		Show the configuration ROM on the node.

	   -d node		Hex dump of the configuration ROM.

	   -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 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.

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

	   -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.

	   -m EUI64 | hostname	Set default fwmem target.  Hostname will be converted to EUI64.

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

	   -p			Dump PHY registers.

	   -R filename		Receive DV or MPEG TS stream and dump it to a file.  Use Ctrl-C to stop 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.ieee1394if.try_bmr=0
				      fwctl -r

				The resulting file contains raw DV data excluding isochronous header and CIP header.  It can be handled by the
				pkgsrc/multimedia/libdv package.  The resulting MPEG TS stream can be played and sent over a network using the
				VideoLAN tool (pkgsrc/multimedia/vlc).	The stream can be piped directly to vlc, see EXAMPLES.

	   -r			Initiate bus reset.

	   -S filename		Send a DV file as isochronous stream.

	   -s node		Write to the RESET_START register on the node.

	   -t			Show the topology map.

	   -u bus_num		Specify the IEEE1394 bus number to be operated on.  The default is bus 0.

FILES

     /dev/fw0.0

EXAMPLES

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

	   fwctl -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 | fwctl -S /dev/stdin

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

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

	   fwctl -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
	   fwctl -R - | nc 192.168.10.11 9000
     with pkgsrc/net/netcat and to receive the stream, use
	   nc -l -p 9000 | vlc -

     To netcast via UDP, you need to use pkgsrc/misc/buffer, 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
	   fwctl -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 documentation.

SEE ALSO

     mplayer(1), vlc(1), fwip(4), fwohci(4), ieee1394if(4), sbp(4)

HISTORY

     The fwctl command first appeared in FreeBSD 5.0, as fwcontrol.  It was added to NetBSD 4.0 under its present name.

AUTHORS

     Hidetoshi Shimokawa <simokawa@FreeBSD.org>
     Petr Holub <hopet@ics.muni.cz> - MPEG TS mode.
     KIYOHARA Takashi <kiyohara@NetBSD.org>

BUGS

     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).

BSD
								  August 24, 2010							       BSD