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This header is used to write a USB host controller driver. The USB host controller extension is a system-supplied driver (Ucx01000.sys). This driver is implemented as a framework class extension by using the Windows Driver Framework programming interfaces. The host controller driver serves as the client driver to that class extension. While a host controller driver handles hardware operations and events, power management, and PnP events, UCX serves as an abstracted interface that queues requests to the host controller driver, and performs other tasks.
Do not include this header directly. Instead include Ucxclass.h
For more information, see:
- Universal Serial Bus (USB)ucxusbdevice.h contains the following programming interfaces:
Functions
| Title | Description |
|---|---|
| UCX_USBDEVICE_EVENT_CALLBACKS_INIT | Initializes a UCX_USBDEVICE_EVENT_CALLBACKS structure with the function pointers to client driver's callback functions. |
| UcxUsbDeviceCreate | Creates a USB device object on the specified controller. |
| UcxUsbDeviceInitSetEventCallbacks | Initializes a UCXUSBDEVICE_INIT structure with client driver's event callback functions. |
| UcxUsbDeviceRemoteWakeNotification | Notifies UCX that a remote wake signal from the device is received. |
Callback functions
| Title | Description |
|---|---|
| EVT_UCX_USBDEVICE_ADDRESS | The client driver's implementation that UCX calls to address the USB device. |
| EVT_UCX_USBDEVICE_DEFAULT_ENDPOINT_ADD | The client driver's implementation that UCX calls to add a new default endpoint for a USB device. |
| EVT_UCX_USBDEVICE_DISABLE | The client driver's implementation that UCX calls to release controller resources associated with the device and its default endpoint. |
| EVT_UCX_USBDEVICE_ENABLE | The client driver's implementation that UCX calls to program information about the device and its default control endpoint into the controller. |
| EVT_UCX_USBDEVICE_ENDPOINT_ADD | The client driver's implementation that UCX calls to add a new endpoint for a USB device. |
| EVT_UCX_USBDEVICE_ENDPOINTS_CONFIGURE | The client driver's implementation that UCX calls to configure endpoints in the controller. |
| EVT_UCX_USBDEVICE_GET_CHARACTERISTIC | UCX invokes this callback to retrieve the device characteristics. |
| EVT_UCX_USBDEVICE_HUB_INFO | The client driver's implementation that UCX calls to retrieve hub properties. |
| EVT_UCX_USBDEVICE_RESET | The client driver's implementation that UCX calls when the port to which the device is attached is reset. |
| EVT_UCX_USBDEVICE_RESUME | UCX invokes this callback function to resume a device from suspend state. |
| EVT_UCX_USBDEVICE_SUSPEND | UCX invokes this callback function to send a device suspend state. |
| EVT_UCX_USBDEVICE_UPDATE | The client driver's implementation that UCX calls to update device properties. |
Structures
| Title | Description |
|---|---|
| ADDRESS0_OWNERSHIP_ACQUIRE | Contains parameters for configuring the device. |
| UCX_USBDEVICE_CHARACTERISTIC | Stores the characteristics of an device. |
| UCX_USBDEVICE_CHARACTERISTIC_PATH_DELAY | Stores the isochronous transfer path delay values. |
| UCX_USBDEVICE_EVENT_CALLBACKS | This structure provides a list of UCX USB device event callback functions. |
| UCXUSBDEVICE_INFO | Contains information about the USB device. This structure is passed by UCX in the EVT_UCX_CONTROLLER_USBDEVICE_ADD event callback function. |
| USB_DEVICE_PORT_PATH | Contains the port path of a USB device. |
| USBDEVICE_ABORTIO | Contains a handle for the Universal Serial Bus (USB) hub or device for which to abort data transfers. |
| USBDEVICE_ADDRESS | Contains parameters for a request to transition the specified device to the Addressed state. This structure is passed by UCX in request parameters (Parameters.Others.Arg1) of a framework request object of the EVT_UCX_USBDEVICE_ADDRESS callback function. |
| USBDEVICE_DISABLE | Contains parameters for a request to disable the specified device. This structure is passed by UCX in request parameters (Parameters.Others.Arg1) of a framework request object of the EVT_UCX_USBDEVICE_DISABLE callback function. |
| USBDEVICE_ENABLE | Contains parameters for a request to enable the specified device. This structure is passed by UCX in request parameters (Parameters.Others.Arg1) of a framework request object of the EVT_UCX_USBDEVICE_ENABLE callback function. |
| USBDEVICE_ENABLE_FAILURE_FLAGS | The flags that are set by the client driver in the EVT_UCX_USBDEVICE_ENABLE callback function. Indicate errors, if any, that might have occurred while enabling the device. |
| USBDEVICE_HUB_INFO | Contains parameters for a request to get information about the specified hub. This structure is passed by UCX in request parameters (Parameters.Others.Arg1) of a framework request object of the EVT_UCX_USBDEVICE_HUB_INFO callback function. |
| USBDEVICE_MGMT_HEADER | This structure provides a handle for the Universal Serial Bus (USB) hub or device physically connected to the bus. |
| USBDEVICE_PURGEIO | The USBDEVICE_PURGEIO structure contains the handle for the Universal Serial Bus (USB) hub or device to purge I/O for. |
| USBDEVICE_RESET | Contains parameters for a request to reset the specified device. This structure is passed by UCX in request parameters (Parameters.Others.Arg1) of a framework request object of the EVT_UCX_USBDEVICE_RESET callback function. |
| USBDEVICE_STARTIO | Contains a handle for the Universal Serial Bus (USB) hub or device on which to start data transfer. |
| USBDEVICE_TREE_PURGEIO | This structure provides the handle for the Universal Serial Bus (USB) device tree to purge I/O for. |
| USBDEVICE_UPDATE | Passed by UCX to update the specified device. This structure is in the request parameters (Parameters.Others.Arg1) of a framework request object passed in the EVT_UCX_USBDEVICE_UPDATE callback function. |
| USBDEVICE_UPDATE_20_HARDWARE_LPM_PARAMETERS | Contains parameters for a request to update USB 2.0 link power management (LPM). UCX passes this structure in the EVT_UCX_USBDEVICE_UPDATE callback function. |
| USBDEVICE_UPDATE_FAILURE_FLAGS | The flags that are set by the client driver in the EVT_UCX_USBDEVICE_UPDATE callback function. Indicate errors, if any, that might have occurred while updating the device. |
| USBDEVICE_UPDATE_FLAGS | Contains request flags set by UCX that is passed in the USBDEVICE_UPDATE structure when UCX invokes the client driver's EVT_UCX_USBDEVICE_UPDATE callback function. |
Enumerations
| Title | Description |
|---|---|
| UCX_USBDEVICE_CHARACTERISTIC_TYPE | Defines values that indicates the type of device characteristic. |
| UCX_USBDEVICE_RECOVERY_ACTION | Defines values for FLDR and PLDR trigger resets. |
There are various problems with USB. The most common case is that when you find there are any port plugging in computer with the USB controller, even if you want to run the troubleshooter to fix the USB issue, you are prompted that the USB Controller is in a failed state or is not currently installed.
Contents:
The USB Controller IS In a Failed State Overview
Of course, some of you may have experienced the issue that Windows cannot load the device driver for USB controller for it may be corrupted or missing. Others are distracted by the USB issue that USB devices are not working.
As for the reasons why USB issues happened to you, to a large extent, it may be due to the USB interruption. So this is also why your USB controller is missing in device manager.
How to Fix The USB Controller IS In a Failed State Issue
On the basis of the fact, here offered some ways to help you fix the USB controller is in a failed state or is not currently installed which is always accompanied by the USB device code 10 error the device cannot start. You are able to solve the USB failure if you can refer to this post earnestly.
Solutions:
Solution 1: Show Hidden Devices
In the first place, you are supposed to check if the USB controller is showing with a yellow exclamation in device manager. That is what show all the hidden devices do for you.
1: Go to Device Manager.
2: Tap View which is on the top of the window.
3: Choose Show Hidden Device. Then all the devices will show up and you can see if there is a yellow exclamation of the USB controller.
If you have found that there is a yellow exclamation under the USB controller, you must go ahead for further solutions to tackle with the USB controller is in a failed state issue.
Related: USB Ports Not Working on Windows 10
Solution 2: Uninstall and Reinstall USB Controller Driver
If there is a yellow exclamation under USB controller, you are required to uninstall and then reinstall the USB driver to help fix the unknown device or not recognized USB device issues.
1: In Device Manager, Locate and expand Universal Serial Bus Controller.
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Here you may need to scroll down to find Universal Serial Bus Controller.
3: Right-click all the USB Controller driver one by one and choose to Uninstall them.
4: Restart your computer. Then Windows 10 will automatically reinstall the USB driver for you.
After that, you can see the USB controller is not only showing up in device manager but also working well on Windows 10.
Solution 3: Update USB Controller Driver
As mentioned above, you must know the issue that USB controller is not currently installed or cannot show up in device manager may be caused by driver compatibility problem. So here comes a convenient way to update the USB controller driver to make it be compatible with Windows 10. Thus, this way is also one of the ways to fix the USB error.
It is using Driver Booster, the professional and safe driver tool for Windows 10. You can count on it in two part, for the first thing, it can help you download and install the USB driver in several clicks and you just need to click two buttons, all the process can be done easily.
For another thing, Driver Booster can detect all the missing, corrupted or even damaged drivers, so it is no doubt that you can use it to fix the USB controller not working or failed to install issue.
Usb Host Controller Driver Download
1. Download, install and run Driver Booster on your computer.
2. Click Scan. Then you can see that Driver Booster is searching for your computer.
Then you can know how many drivers are missing or corrupted, including USB driver.
3. Update Now. You can choose to download all the drivers need to be updated with one click.
Once you have finished updating USB controller driver automatically by Driver Booster, you may find that the USB is installed correctly and can work as normal.
In a word, as for the error that the USB controller is in a failed state or is not currently installed, you can resolve it without wasting much energy or time if you can obey the solution shown to you.
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