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 Drivers are one of the must-have tools to be installed on your PC or Mac. Because of that, your mobile device interacts with your PC.These work as Bridge between your Phone and your computer. The USB drivers help us to connect our phone to the computer and perform tasks like transferring data, syncing your device with a PC. On Windows 10, a device driver is an essential piece of code, which allows the system to interact with a specific hardware (such as graphics card, storage driver, network adapter, Bluetooth, etc. AMD Rolls Out Its First 2021 Graphics Driver - Get Radeon 21.1.1 Intel Adds Support for Iris Xe Max Graphics (DG1) - Get Version 27.20.100.9168 The New RTX 461.09 Graphics Driver Adds Support for NVIDIA’s A40 GPU. If your USB device does not work the most likely problem is missing or outdated drivers. When you plug the device into your USB, Windows will look for the associated driver, if it cannot find this driver then you will be prompted to insert the driver disc that came with your device. The module utilizes a high-speed custom function driver optimized for a maximum data throughput that is 50-100 times faster than the USB human interface device (HID) driver used by many competing products. This approach maximizes the full functionality of the hardware along with capitalizing the advantage of high-speed USB 2.0.
Drivers RMS USB Devices
Registry settings for configuring USB driver stack behavior
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.
Drivers Rms Usb Devices Adapter
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. |
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IgnoreHWSerNum REG_BINARY Supported on Windows Vista and later versions. | Indicates whether the USB driver stack must ignore the serial number of the device. |
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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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