| US 7,581,050 B2 | ||
| Information processing apparatus, peripheral apparatus control method, and computer readable medium | ||
| Hideki Honda, Kawasaki (Japan) | ||
| Assigned to Canon Kabushiki Kaisha, Tokyo (Japan) | ||
| Filed on Feb. 14, 2007, as Appl. No. 11/674,935. | ||
| Claims priority of application No. 2006-077711 (JP), filed on Feb. 20, 2006. | ||
| Prior Publication US 2007/0198755 A1, Aug. 23, 2007 | ||
| Int. Cl. G06F 12/00 (2006.01) | ||
| U.S. Cl. 710—240 [710/19; 709/223; 709/224] | 12 Claims |
| 1. An information processing apparatus that runs an operating system, wherein the information processing apparatus allocates
a plurality of peripheral apparatuses to a single queue that manages each of the plurality of peripheral apparatuses, the
information processing apparatus comprising:
a status management unit that performs communication with the plurality of peripheral apparatuses, obtains the status of each
respective peripheral apparatus on the basis of each individual port of a plurality of ports connected to the single queue,
and stores the statuses in a storage area prepared for each individual port in a status storage unit;
a status query unit that queries the status management unit via a spooler of the operating system for the status of one of
the plurality of peripheral apparatuses;
a port identifier recognition unit that recognizes a port identifier that is contained within a status query message that
is issued by the status query unit, and identifies a port to which the peripheral apparatus is connected; and
a status reply unit that reads out the status of the one of the plurality of peripheral apparatuses, which is connected to
a port that corresponds to the port identifier recognized by the port identifier recognition unit, from the status storage
unit, and replies the read status to the status query unit.
|