Invention Grant
US09563443B2 Information processing device, peripheral device control method, and non-transitory computer readable medium storing filter driver for controlling a power state of a peripheral device
有权
信息处理装置，外围设备控制方法以及用于控制外围设备的电源状态的过滤器驱动器的非暂时计算机可读介质
- Patent Title: Information processing device, peripheral device control method, and non-transitory computer readable medium storing filter driver for controlling a power state of a peripheral device
- Patent Title (中): 信息处理装置，外围设备控制方法以及用于控制外围设备的电源状态的过滤器驱动器的非暂时计算机可读介质
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Application No.: US14802430Application Date: 2015-07-17
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Publication No.: US09563443B2Publication Date: 2017-02-07
- Inventor: Hiromitsu Sakamoto
- Applicant: Renesas Electronics Corporation
- Applicant Address: JP Kanagawa
- Assignee: Renesas Electronics Corporation
- Current Assignee: Renesas Electronics Corporation
- Current Assignee Address: JP Kanagawa
- Agency: Sughrue Mion, PLLC
- Priority: JP2014-169502 20140822
- Main IPC: G06F3/00
- IPC: G06F3/00 ; G06F1/00 ; G06F9/44 ; G06F13/38 ; G06F1/32
Abstract:
In an information processing device, if the power state of a peripheral device changed by a class driver is the low-power state, in which the peripheral device consumes less power than in its normal state but its operation is limited, a filter driver below the class driver suspends controlling the peripheral device in accordance with a control request from an application program without passing through the class driver until the power state of the peripheral device returns to the normal state.
Public/Granted literature
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