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Method of determining the configuration of devices installed on a computer bus

  • US 5,628,027 A
  • Filed: 12/30/1994
  • Issued: 05/06/1997
  • Est. Priority Date: 10/29/1993
  • Status: Expired due to Term
First Claim
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1. A method for determining if an expansion board contained in a computer system requires utilization of computer system resources, the resources including a direct memory access (DMA) controller and an interrupt controller, the resources having registers for holding values, the expansion board including initialization software, the method comprising the steps of:

  • (a) saving the register values of the resources as original values;

    (b) executing the initialization software of the expansion board after step (a);

    (c) reading the register values of the resources as new values after step (b);

    (d) comparing the new values to the corresponding original values to determine resource utilization; and

    (e) saving resource utilization information if step (d) indicates resource utilization.

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