handle
libraw1394 handle
node
target node ID
addr
address to write to
length
amount of bytes of data to write
data
pointer to data to be sent
tag
data to identify the request to completion handler
This function starts the specified write request. If
length
is 4
a quadlet write is initiated and a block write otherwise.
The transaction is only started, no success of the transaction is implied
with a successful return of this function. When the transaction completes, a
raw1394_loop_iterate
will call the tag handler and pass it the tag and
error code of the transaction. tag
should therefore be set to something
that uniquely identifies this transaction (e.g. a struct pointer casted to
unsigned long).