The package provides the installation files for Microsoft USB Input Device Driver version 10.0.4. If the driver is already installed on your system, updating (overwrite-installing) may fix various issues, add new functions, or just upgrade to the available version. If you are using an older computer model (e.g. A Pentium 4 with Windows XP and USB 2.0 cameras), we suggest using driver 2.4.14. If you are using Windows 8, the latest driver 2.7.9 or newer is recommended for USB 2.0 and 3.0 cameras. In Windows 1909, my laptop webcam become 'Unknown USB device (device request descriptor failed)'. Already tried uninstalling the driver and system restore (but to not previous feature update, that's unavailable), each restart always happen with USB device not recognized. Can anyone help me how to force update the driver. As mentioned above, the USB hub incompatibility is the major factor that leads to the USB composite device driver error. If all the above methods fail to fix the error, you may need to consider using a USB 2.0 hub or expansion card. Compared with USB 3.0, USB 2.0 has better compatibility with some old devices. Plug and Play: USB webcam is very easy to use, USB connector, it can be easily set up, NO additional driver required, which means, you can plug and play. High sensitivity, intelligent,Support 720P, 1080P video call, smooth picture, frame rate can reach 30FPS.
-->This topic describes the device-specific registry entries.
Find device information after it enumerates on Windows
View the device interface GUID, Hardware Id, and device class information about your device
Find this registry key and note the DeviceInstance value:
HKEY_LOCAL_MACHINESYSTEMCurrentControlSetControlDeviceClasses
Find the device instance registry key and get the device interface GUID:
HKEY_LOCAL_MACHINESYSTEMCurrentControlSetEnumUSB<hardware id><instance id>Device Parameters
Under the device instance key, note the device class, subclass, and protocol codes:
HKEY_LOCAL_MACHINESYSTEMCurrentControlSetEnumUSB
Usb Camera Usb Devices Drivers
Registry settings for configuring USB driver stack behavior
Usb Camera Usb Devices Driver Windows 7
The registry entries described in this topic are found under this key:
In the vvvvpppprrrrr key,
- vvvv is a 4-digit hexadecimal number that identifies the vendor
- pppp is a 4-digit hexadecimal number that identifies the product
- rrrr is a 4-digit hexadecimal number that contains the revision number of the device.
The vendor ID, product ID, and revision number values are obtained from the USB device descriptor.The following table describes the possible registry entries for the vvvvpppprrrrr key. The USB driver stack considers these entries as read-only values.
| Registry entry | Description | Possible values |
|---|---|---|
osvc REG_BINARY Supported on Windows XP and later versions. | Indicates whether the operating system queried the device for Microsoft-Defined USB Descriptors. If the previously-attempted OS descriptor query was successful, the value contains the vendor code from the OS string descriptor. |
|
IgnoreHWSerNum REG_BINARY Supported on Windows Vista and later versions. | Indicates whether the USB driver stack must ignore the serial number of the device. |
|
ResetOnResume REG_BINARY Supported on Windows Vista and later versions. | Indicates whether the USB driver stack must reset the device when the port resumes from a sleep cycle. |
|
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