Invention Grant
US09021143B2 Polling of I/O devices on host initiated communication transports
有权
在主机启动的通信传输上轮询I / O设备
- Patent Title: Polling of I/O devices on host initiated communication transports
- Patent Title (中): 在主机启动的通信传输上轮询I / O设备
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Application No.: US13690448Application Date: 2012-11-30
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Publication No.: US09021143B2Publication Date: 2015-04-28
- Inventor: Moulishankar Mouli Chandrasekaran , John J. Valavi , James R. Trethewey
- Applicant: Intel Corporation
- Applicant Address: US CA Santa Clara
- Assignee: Intel Corporation
- Current Assignee: Intel Corporation
- Current Assignee Address: US CA Santa Clara
- Agency: Trop, Pruner & Hu, P.C.
- Main IPC: G06F3/00
- IPC: G06F3/00 ; G06F13/10 ; G06F13/24 ; G06F13/22

Abstract:
A disclosed data processing system includes a processor and an operating system kernel that includes communication drivers to support sideband interrupt deferring of polling associated with I/O requests. The communication drivers may implement a driver stack that includes a sideband miniport driver to detect an application program read request for device data from an input/output (I/O) device. The I/O device may be a sensor or another type of human interface device. The sideband miniport driver may pend the read request and maintain an interrupt pipe of a communication transport between the host system and the I/O device in a disabled state. With the interrupt pipe disabled, the host system drivers are unable to poll the I/O device. The sideband miniport driver may pend the read request and keep the interrupt pipe disabled until a sideband interrupt is communicated to the sideband miniport driver.
Public/Granted literature
- US20140156871A1 POLLING OF I/O DEVICES ON HOST INITIATED COMMUNICATION TRANSPORTS Public/Granted day:2014-06-05
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