Remove Asmedia USB Host Controller Driver. Asmedia USB Host Controller Driver is a software program developed by Asmedia Technology. The most common release is 1.16.26.1, with over 98% of all installations currently using this version. The setup package generally installs about 6 files and is usually about 2.81 MB (2,950,308 bytes). USB host controller driver programming reference. The client driver handles hardware operations and events, power management, and PnP events. UCX serves as an abstracted interface to the rest of the Microsoft USB 3.0 stack, queues requests to the client driver, and performs other tasks.
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This section provides reference information about writing Windows drivers that present non-USB devices as emulated USB devices. By using the WDF class extension-client driver model, you can write a driver that translates USB-level constructs (reset, data transfers) to the actual underlying bus by using the hardware’s interface. The class extension and the client driver represent an emulated host controller with a root hub that is capable of presenting an attached device to the system as an USB device.
USB xHCI Compliant Host Controller not working (code 10) In device manager, there is a yellow triangular caution symbol by it. If it helps, I restarted my computer after installing The Witcher 3, and could not log back in because my computer was not detecting my keyboard or mouse. The LEDs lit up on the keyboard however, but could not function. Nov 27, 2017 - The easy and quick ways to fix The ASMedia USB Host Controller was not found error on your Asus or other computer. Click to check it. Available in this download are drivers for VIA USB 2.0 host controller on a system running on Windows 98/98SE/Me. Due to licensing agreements, USB 2.0 drivers for Windows 2000/XP are not available.
With a host controller you will be able to communicate with all USB devices, and with a USB device controller you can just communicate with a host controller. USB host is the USB on the PC side in most cases and USB Device is the USB in your mouse,keyboard, flash memory and so on.
In this architecture, the class extension is the Microsoft-provided driver (udecx.sys): USB device emulation class extension (UdeCx). This is an in-box driver included Windows 10.
The client driver is written by an IHV/OEM. This section refers to that driver as the UDE client driver.
The driver pair loads as the FDO in the host controller device stack. The UDE client driver communicates with Udecx by using a set of methods and event callback functions to handle device requests and notify the class extension about various events.
This section describes the event callback functions that are defined by UdeCx. These functions are implemented by your client driver for the emulated device. UdeCx invokes these functions to notify the client driver about events.
Function | Description |
---|---|
The USB device emulation class extension (UdeCx) invokes this callback function to request the client driver to create a dynamic endpoint on the virtual USB device. | |
The USB device emulation class extension (UdeCx) invokes this callback function to change the configuration by selecting an alternate setting, disabling current endpoints, or adding dynamic endpoints. | |
The USB device emulation class extension (UdeCx) invokes this callback function to request the client driver to create the default control endpoint on the virtual USB device. | |
The USB device emulation class extension (UdeCx) invokes this callback function when it gets a request to bring the virtual USB device out of a low power state to working state. | |
The USB device emulation class extension (UdeCx) invokes this callback function when it gets a request to send the virtual USB device to a low power state. | |
The USB device emulation class extension (UdeCx) invokes this callback function when it gets a request to change the function state of the specified interface of the virtual USB 3.0 device. | |
The USB device emulation class extension (UdeCx) invokes this callback function to reset an endpoint of the virtual USB device. | |
The USB device emulation class extension (UdeCx) invokes this callback function to start processing I/O requests on the specified endpoint of the virtual USB device. | |
The USB device emulation class extension (UdeCx) invokes this callback function to stop queuing I/O requests to the endpoint's queue and cancel unprocessed requests. | |
The UDE client driver's implementation to reset the emulated host controller or the devices attached to it. | |
The UDE client driver's implementation to determine the capabilities that are supported by the emulated USB host controller. |
This section describes the driver support methods that are implemented by the UdeCx library. Your client driver calls these methods to communicate with UdeCx.
![Controller Controller](https://msdn.microsoft.com/dynimg/IC819679.png)
Function | Description |
---|---|
Initializes a UDECX_USB_DEVICE_PLUG_IN_OPTIONS structure. | |
Initializes a UDECX_WDF_DEVICE_CONFIG structure. | |
Initializes device initialization operations when the Plug and Play (PnP) manager reports the existence of a device. | |
Initializes a framework device object to support operations related to a host controller and a virtual USB device attached to the controller. | |
Informs the USB device emulation class extension (UdeCx) that the reset operation on the specified controller has competed. | |
Attempts to handle an IOCTL request sent by a user-mode software. | |
Allocates memory for a UDECXUSBDEVICE_INIT structure that is used to initialize a virtual USB device. | |
Sets the USB speed of the virtual USB device to create. | |
Initializes a WDF-allocated structure with pointers to callback functions. | |
Indicates the type of endpoint (simple or dynamic) in the initialization parameters that the client driver uses to create the virtual USB device. | |
Adds a USB descriptor to the initialization parameters used to create a virtual USB device. | |
Adds a USB descriptor to the initialization parameters used to create a virtual USB device. | |
Adds a USB string descriptor to the initialization parameters used to create a virtual USB device. | |
Adds a USB string descriptor to the initialization parameters used to create a virtual USB device. | |
Creates a USB Device Emulation (UDE) device object. | |
Releases the resources that were allocated by the UdecxUsbDeviceInitAllocate call. | |
Notifies the USB device emulation class extension (UdeCx) that the USB device has been plugged in the specified port. | |
Completes an asynchronous request for bringing the device out of a low power state. | |
Completes an asynchronous request for sending the device to a low power state. | |
Completes an asynchronous request for changing the power state of a particular function of a virtual USB 3.0 device. | |
Initiates wake up from a low link power state for a virtual USB 2.0 device. | |
Initiates wake up of the specified function from a low power state. This applies to virtual USB 3.0 devices. | |
Disconnects the virtual USB device. | |
Allocates memory for an initialization structure that is used to create a simple endpoint for the specified virtual USB device. | |
Release the resources that were allocated by the UdecxUsbSimpleEndpointInitAllocate call. | |
Sets the address of the endpoint in the initialization parameters of the simple endpoint to create. | |
Sets pointers to UDE client driver-implemented callback functions in the initialization parameters of the simple endpoint to create. | |
Creates a UDE endpoint object. | |
Sets a framework queue object with a UDE endpoint. | |
Completes an asynchronous request for canceling all I/O requests queued to the specified endpoint. | |
Retrieves a USB control setup packet from a specified framework request object. | |
Retrieves the transfer buffer of an URB from the specified framework request object sent to the endpoint queue. | |
Sets the number of bytes transferred for the URB contained within a framework request object. | |
Completes the URB request with a USB-specific completion status code. | |
Completes the URB request with an NTSTATUS code. |
Related topics
Solved!
01-04-201310:03 AM
Hi,
I found the USB-IF xHCI USB Host Controller in device manager not compatibale and the error is (This device is not working properly because Windows cannot load the drivers required for this device. (Code 31)).
The operating system is Windows 8.
Please need yor support to work this device properly.
Solved!
01-04-201304:44 PM
That is the USB 3.0 Host Controller. A lot of folks are having trouble with USB 3.0 in Windows 8. You must have a fairly recent laptop but to help much more I need to know your model number and also it would not hurt to go into the advanced properties of the offending device and give us the hardware id string so we can see what type of USB 3.0 controller you have.
Solved!
01-04-201310:56 PM
I'm having the same problem with my brand new DV7T 7200 Quad. In BOTH Windows 7 and Windows 8. This seems to be somethign added by the Intel WiDi software. I've tried everything (installing all drivers, new USB3 drivers, etc) and nothing works. I ended up 'uninstalling' the device and it hasn't shown up again. I would like to get it resolved though because my HP Recovery DVDs do not work. They fail at the end of the recovery with an error regarding USB yellow triangle. I suspect this is the reason. So my recovery discs are useless.
Solved!
01-05-201301:50 AM
Hi Huffer,
My Laptop is HP ENVY DV6 7295EX
Product number: C5U00EA#A2N
OS is Windows 8 Single Language 64-bit
Hardware id:
rootusbpalbus
Thanks for your cooperation.
Elbaiar
Solved!
01-05-201302:54 PM
I want you to know I resolved this problem on my DV7T 7200. I downloaded the latest WiDi drivers from Intel:
These seem to be newer than the ones HP provides. I installed ALL other drivers first (display, chipset, etc) and then I installed the WiDi software (link above). The USB-IF xHCI USB Host Controller was recognized just fine. No more unkown devices.
Hope this helps.
Jim
Solved!
01-05-201303:32 PM - edited 01-05-201303:33 PM
Hi Jim,
I have installed your recommened driver and now the device is working properly.
Thanks all for your cooperations.
Elbaiar
Solved!
01-12-201309:29 AM
HI Huffer,
I'm having the same problem. My laptop HP ENVY dv7
Product number B6B77AV
Windows 8 64 bit
Solved!
01-12-201312:48 PM
Hi,
Try to update the driver from the below link:
Thanks,
Solved!
01-14-201304:37 AM
I'm having the same problem with:
Product name: HP Spectre XT Ultrabook PC
Product number: B8C21AV
Solved!
01-14-201310:20 PM
I have the same issue. It started when I inserted a USB 3.0 flash drive. It did not show up when I used my 2.0 flash drive, it only started when I inserted the 3.0 device and has not gone away since. I have a Spectre XT Touchsmart 15t-4000.
Michael
What Is Asmedia Asm104x Usb 3.0 Host Controller Driver
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