Asynchronous Read/Writing with libraw1394

I'm trying to get two computers to communicate with each other over firewire. Both of the computers are running Ubuntu 9.10 and both have read/write access to the /dev/raw1394 node. I'm using firecontrol to quickly test sending read/write requests. If I can get it to work with firecontrol, I should be able to figure out how to do the same in my code.

On computer A, I do this:

computerA $ ./commander

Work Now

Copyright (C) 2002-2007 by Manfred Weihs

This software comes with absolutely no warranty.

No adapter specified!

successfully got handle

current generation number (driver): 1

1 card(s) found

nodes on bus: 2, card name: ohci1394

using adapter 0

found: 2 nodes on bus, local ID is 1, IRM is 1

current generation number (adapter): 7

entering command mode

Type 'help' for more information!

Command: w . 0 0 0xDE

insufficient arguments for operation!

Command: w . 0 0 2 0xDe

writing to node 0, bus 1023, offset 000000000000 2 bytes:

00 DE

write succeeded.

Ack code: complete

Since computer A is on node 1, I send to node 0. Then I go to computer B and read from node 0 and get this:

computerB $ ./commander

Copyright (C) 2002-2007 by Manfred Weihs

This software comes with absolutely no warranty.

No adapter specified!

successfully got handle

current generation number (driver): 1

1 card(s) found

nodes on bus: 2, card name: ohci1394

using adapter 0

found: 2 nodes on bus, local ID is 0, IRM is 1

current generation number (adapter): 9

entering command mode

Type 'help' for more information!

Command: r 开发者_JAVA百科. 0 0 1

reading from node 0, bus 1023, offset 000000000000 1 bytes

read failed.

Ack code: pending; Response code: address error

I'm using the same offset for both of them. What am I doing wrong and how am I supposed to read/write from/to firewire nodes?

I have these same problems when I try and use raw1394 in my own code.