| 摘要 |
A method, system and computer program product are provided for detecting the presence of devices, particularly hot plug devices, connected to a bus both during start-up of a computer system and while the system is running. At start-up, and periodically thereafter, all possible device connections are polled by microprocessors, called sub-bus controllers, which include logic for generating a map of components present on each bus. Each map is accessible by the master bus controller. During system run-time, periodic polling, may be continuous thereby providing a real time device status map for every available bus connection.
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