Endpoint device discovery system

摘要

An endpoint device discovery system includes a downstream port. A register is coupled to the downstream port. An endpoint ready status bit may be set in the register in response to an endpoint ready message received at the downstream port. A non-transitory computer-readable medium is coupled to the register and includes computer-readable instructions that, when executed by a processor, cause the processor to determine that the endpoint ready status bit is set and, in response, configure an endpoint device that is coupled to the downstream port. The endpoint device discovery system may be included in an information handling system (IHS) in order to provide for discovery of endpoint devices that are coupled to the IHS as soon as those endpoint devices have initialized.

主权项

1. An endpoint device discovery system, comprising:
an information handling system (IHS) chassis; a downstream port that is located in the IHS chassis; a register that is located in the IHS chassis and that is coupled to the downstream port, wherein an endpoint ready status bit is configured to be set in the register in direct response to an endpoint ready message that is received at the downstream port from an endpoint device that is coupled to the downstream port and that has experienced a power-on or reset operation; and a non-transitory computer-readable medium that is located in the IHS chassis, that is coupled to the register, and that comprises computer-readable instructions that, when executed by a processor that is located in the IHS chassis, prevent the processor from attempting to communicate with the endpoint device following the power on or reset operation until the processor determines that the endpoint ready status bit has been set in direct response to receiving the endpoint ready message from the endpoint device and, in direct response to determining that the endpoint ready status bit has been set in direct response to receiving the endpoint ready message from the endpoint device, cause the processor to automatically access and configure the endpoint device.