Invention Grant
- Patent Title: Method for shortening enumeration of tightly coupled USB device
- Patent Title (中): 缩短紧耦合USB设备枚举的方法
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Application No.: US13629486Application Date: 2012-09-27
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Publication No.: US08909818B2Publication Date: 2014-12-09
- Inventor: Liron Manor , Yoram Rimoni , Sergio Kolor
- Applicant: Liron Manor , Yoram Rimoni , Sergio Kolor
- Applicant Address: US CA San Diego
- Assignee: QUALCOMM Incorporated
- Current Assignee: QUALCOMM Incorporated
- Current Assignee Address: US CA San Diego
- Agent Howard Seo
- Main IPC: G06F3/06
- IPC: G06F3/06 ; G06F13/00

Abstract:
In a Universal Serial Bus (USB) enumeration procedure, a USB Host questions a USB Device for its capabilities and chooses a set of capabilities that best fit. When the USB Device is enumerated, the USB Host may perform several time-consuming and power-consuming operations. However, when the USB Device is tightly or permanently coupled to the USB Host, part of the enumeration procedure may be redundant and can be eliminated. Accordingly, a method, an apparatus, and a computer program product for shortening enumeration of the USB Device tightly coupled to the USB Host are provided. The USB Host sends a request for a Device descriptor to the USB Device, receives a plurality of descriptors in a single transfer from the USB Device, and sets a configuration of the USB Device based on the received plurality of descriptors.
Public/Granted literature
- US20140089532A1 Method for Shortening Enumeration of Tightly Coupled USB Device Public/Granted day:2014-03-27
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