{caseSTATUS_INVALID_DEVICE_REQUEST://Invalid request.break;caseSTATUS_CANCELLED://1. The device driver canceled the IRP.//2. A system power state change is required.break;caseSTATUS_POWER_STATE_INVALID:// Device driver requested a D3 power state for its device// Release the allocated resource...
是为了支持主机流通协议，enable之后可以usb修改系统。还要提供有限的主机能力和一个MiniAB插座、支持主机流通协议(HostNegotiationProtocol，HNP)，并和外设式OTG设备一样支持事务请求协议(SessionRequestProtocol，SRP)。当作为主机工作时，两用OTG设备可在总线上提供8mA的电流，而以往标准主机则需要提供100～500...
Part 1: What is USB selective suspend? The tl;dr version: it prevents your computer from using too much unnecessary power by putting certain USB port(s) in a low-power state, i.e. the suspend state. USB selective suspend feature only works when you have USB devices connected to your c...
https://docs.microsoft.com/en-us/windows-hardware/drivers/usbcon/usb-selective-suspend 这个东西可以在电源选项里找到。可以看到,就算在高性能模式计划下,默认也是开启的。 而且,运用一个小工具,powersettings explorer可以看到,usb接口默认情况下,50ms不动就会被挂起,也就是说,俺一个瞄准拉枪,刚启动的时候还在...
This test evaluates the selective suspend abilities of the USB device. Test details Specifications Device.Connectivity.UsbDevices.MustSupportSuspend Platforms Windows 10, client editions (x86) Windows 10, client editions (x64) Supported Releases
PCI Link State Power Management (DC)(PCI 链路状态 电源管理(直流)) 指定PCI 链路空闲时的有效状态。 可能的状态包括: • 关闭 • 中等省电 • 最高省电 该设置在 Windows XP 客户端计算机中不受支持。 Multimedia settings (AC)(多媒体设置(交流)) ...
USB 函式驅動程式藉由實作 USB 選擇性暫停,支援運行時間閒置偵測。 以下是驅動程式開發人員的內容,說明如何在以 Windows® Driver Foundation (WDF) 為基礎的 USB 驅動程式中實作選擇性暫停。 關於選擇性暫停 選擇性暫停是能夠關閉電源,稍後再繼續閑置的USB裝置,而連接它的電腦仍處於工作狀態, (S0) 。 針對有能...
USB Suspend:USB Device not Entering Selective Suspend This device did not enter the USB Selective Suspend state. Processor power management may be prevented when this USB device is not in the Selective Suspend state. Note that this issue will not prevent the system from sleeping....
在Microsoft Teams 會議室專業版 管理入口網站中,Microsoft Teams 會議室 裝置的USB選擇性暫停訊號會顯示為狀況不良,而事件嚴重性值會顯示為警告。 此外,使用者可能會遇到下列問題:當Teams 會議室 裝置進入睡眠狀態並喚醒時,連線到該裝置的USB裝置會變得沒有回應或中斷連線。
This test is designed to test the selective suspend abilities of the USB. This feature allows a device's port to be suspended when the device is not in use in order to conserve power. To properly support this new feature, a device must maintain its internal state when its upstream port ...