在USB 2.0协议中第 9.1 USB Device States 章节规定了USB设备的6种状态,包括: Attached/Powered/Default/Address/Configured/Suspended 其状态迁移图如下: 在Linux Kernel ch9.h 文件中用 enum usb_device_state 来标记这几种状态。 // <kernel_dir>/include/uapi/linux/usb/ch9.henumusb_device_state {/* N...
[ 123.905102]msm_otg 78d9000.usb: ep_set_halt: Unable to halt EP while suspended [ 123.911576] msm_otg 78d9000.usb: ep_set_halt: Unable to halt EP while suspended [ 123.934291] done. [ 123.946347] cpufreq: Frequency violation fixed for CPU0 [ 123.950615] Abort: Some devices failed to...
UsbfnDeviceStateDetached设备未连接到上游端口。 UsbfnDeviceStateAddressed主机已为设备分配非默认 USB 地址。 UsbfnDeviceStateConfigured设备已由主机配置。 UsbfnDeviceStateSuspended设备已暂停。 UsbfnDeviceStateStateMaximum枚举的最大值。 要求 展开表 要求值 Header usbfnbase.h反馈...
var IOUSBHostCIPortStateActive: IOUSBHostCIPortState var IOUSBHostCIPortStateOff: IOUSBHostCIPortState var IOUSBHostCIPortStatePowered: IOUSBHostCIPortState var IOUSBHostCIPortStateSuspended: IOUSBHostCIPortState var IOUSBHostCIUserClientVersion100: IOUSBHostCIUserClientVersion ...
Note that the bit status does not change until the port is suspended and that there may be a delay in suspending a port if there is a transaction currently in progress on the USB." In the USB controller, the SUSP bit (port_suspend_r) changes immediately when the application sets it ...
The method comprises: when a suspended state or an idle state of an overall bus of a system exceeds a first time threshold, powering off a USB physical layer PHY; setting a USB controller to a power-saving mode, and reserving a resource; then receiving a first wake-up instruction sent ...
[PATCH 065/100] usb: common: introduce usb_state_string() this function will receive enum usb_device_state and return a human-readable string from it or, case an unknown value is passed as argument, the string "UNKNOWN".
Powered The port has power. Running The port is running. Stopped The port is stopped. Suspended The port is suspended. Version Information Available in the .NET Micro Framework version 4.1 and 4.2. See Also Reference Microsoft.SPOT.Hardware.UsbClient Namespace中文...
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1,610件の閲覧回数 mauriciorodrigu Contributor II Hi everyone. We are trying to wake up Android running on Q7A-551 with MX 6DualLite. When Android is in "suspended mode" usb keyboard can wakeup android with a single keystroke. But if Android goes in to deep ...