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Bus 001 Device 006: ID 1410:9020 Novatel Wireless Bus 001 Device 009: ID 045e:00db Microsoft Corp. Natural Ergonomic Keyboard 4000 V1.0 Bus 001 Device 008: ID 046d:c52b Logitech, Inc. Unifying Receiver Bus 001 Device 003: ID 0424:ec00 Standard Microsystems Corp. SMSC9512/9514 Fast Ethernet Adapter Bus 001 Device 002: ID 0424:9514 Standard. Features of the Active USB-COM Port Driver 1.Features: The USB device can be removed from the PC USB Port while the application opens the Serial Port with which the USB; device is connected. (It will be kept opening when the USB device is plugged into the USB Port again.) The Virtual Serial Port is always existed on PC even if USB device is. 70-698 Installing and Configuring Windows 10 Lab Challenge Rolling Back a Device Driver Overview In this exercise, you will use Device Manager to roll back a device driver. Mindset Sometimes when you upgrade or load a device driver, the device for which the device driver is used stops working or causes other problems with Windows. With Device Manager, you can roll back a device driver to the. The pf driver is intended for use with parallel port ATAPI disk devices. The most common devices in this category are PD drives and LS-120 drives. Traditionally, media for these devices are not partitioned. Consequently, the pf driver does not support partitioned media. This may be changed in a future version of the driver. Usb Port Driver free download - USB Audio ASIO Driver, VIA USB 2.0 Host Controller Driver, USB Audio ASIO driver, and many more programs.
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
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.
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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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