An architecture, a system and a method monitors data structures over an IEEE
1394-1995
serial bus network. The data structures are portions of entries posted and stored
to a descriptor mechanism. A resource request is submitted by a requesting control
device to an AV/C resource schedule bulletin board subunit, where request data
is stored and posted. The requesting control device submits a corresponding notify
command data frame to the AV/C bulletin board subunit. When a competing control
device performs a specified type of access activity on a specified data structure,
the bulletin board subunit sends a notify response frame to the original requesting
control device. The notify response frame provides an alert to the original requesting
control device that the specified access activity has been performed on the specified
data structure by a competing control device.
