公开(公告)号：US12147294B1

公开(公告)日：2024-11-19

申请号：US18316653

申请日：2023-05-12

Applicant: Hewlett-Packard Development Company, L.P.

Inventor： Kathleen E Lenz ,  Jeanette M Calvert Coffren ,  Michael A Miller ,  Jean-Claude Sessou

IPC: G06F11/07 ,  G06F11/30 ,  G06F13/42

Abstract: The disclosed technology is directed to a computing device for triggering an alert to a user about an occurrence of overcurrent at a first USB port of the computing device. In some examples, the computing device includes a USB interface circuit, a system processor and a host controller. Responsive to detecting the occurrence of overcurrent at the first USB port, the USB interface circuit transmits an alert signal to the system processor through a control bus without communicating directly with the host controller. The system processor determines the alert signal indicates the occurrence of overcurrent at the first USB port and sets an overcurrent register at the host controller to a first value to indicate the occurrence of overcurrent at the first USB port. The host controller triggers the alert to the user responsive to the overcurrent register being set to the first value.