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$FreeBSD: head/usr.sbin/fwcontrol/fwcontrol.8 120432 2003-09-25 09:33:16Z simokawa $
.Dd December 30, 2002 .Dt FWCONTROL 8 .Os .Sh NAME .Nm fwcontrol .Nd FireWire control utility .Sh SYNOPSIS .Nm .Op Fl u Ar bus_num .Op Fl prt .Op Fl c Ar node .Op Fl d Ar node .Op Fl o Ar node .Op Fl s Ar node .Op Fl l Ar file .Op Fl g Ar gap_count .Op Fl b Ar pri_req .Op Fl R Ar filename .Op Fl S Ar filename .Sh DESCRIPTION The .Nm utility is designed to provide a way for users to access and control the .Fx FireWire subsystem. Without options, .Nm will output a list of devices that are/were connected to the bus.
p The following options are available: l -tag -width indent t Fl u Ar bus_num Specify the FireWire bus number to be operated. t Fl r Initiate bus reset. t Fl t Show the topology map. t Fl p Dump phy registers. t Fl c Ar node Show the configuration ROM on the node. t Fl d Ar node Hex dump of the configuration ROM. t Fl o Ar node Send a link-on PHY packet to the node. t Fl s Ar node Write to .Dv RESET_START register on the node. t Fl l Ar file Load hex dump file of the configuration ROM and parse it. t Fl g Ar gap_count Broadcast .Ar gap_count by phy_config packet. t Fl i Ar pri_req Set .Dv PRIORITY_BUDGET register on all supported nodes. t Fl R Ar filename Receive DV stream and dump it to a file. Use Ctrl-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: d -literal -offset indent sysctl hw.firewire.try_bmr=0 fwcontrol -r .Ed
p The resulting file contains raw DV data excluding isochronus header and CIP header. It can be handled by .Nm libdv in the .Fx Ports Collection. t Fl S Ar filename Send a DV file as isochronus stream. .El .Sh EXAMPLES Each DV frame has fixed size and it is easy to edit those frame order.
p .Dl "fwcontrol -R original.dv"
p Receive stream.
p .Dl "dd if=original.dv of=first.dv bs=120000 count=30"
p Get first 30 frames(NTSC).
p .Dl "dd if=original.dv of=second.dv bs=120000 skip=30 count=30"
p Get second 30 frames(NTSC).
p .Dl "cat second.dv first.dv | fwcontrol -S /dev/stdin"
p Swap first and second 30 frames and send them to DV recorder.
p For PAL, replace .Dq Li bs=120000 with .Dq Li bs=144000 . .Sh FILES l -tag t Pa /dev/fw0.0 .El .Sh SEE ALSO .Xr firewire 4 , .Xr fwe 4 , .Xr fwohci 4 , .Xr sbp 4 .Sh HISTORY The .Nm utility first appeared in .Fx 5.0 . .Sh AUTHORS .An Hidetoshi Shimokawa Aq simokawa@FreeBSD.org .Sh BUGS This utility is still under development and provided for debug purpose.