![]() ![]() "0x00000001": Enters selective suspend when idle, that is, when there are no active data transfers to or from the device. To configure power management features of Usbser.sys, you can set IdleUsbSelectiveSuspendPolicy to: ![]() When communication with the device resumes, the device can leave the suspend state and resume the working state. It allows the attached USB-to-serial device to enter a low power state when not in use, while the system remains in the S0 state. Starting in Windows 10, Usbser.sys supports USB Selective Suspend. For information about INF sections, see Overview of INF Files.Ĭonfigure selective suspend for Usbser.sys For examples, look through the INF files included with sample drivers and find devices similar to your device. If your device specifies class and subclass codes to 02, and you want to load another driver instead of Usbser.sys, you have to write an INF that specifies the hardware ID of the device and the driver to install. You might have to load your own driver or write an INF that references another in-box driver. If a suitable driver isn't found, the device might not have a driver loaded. The Plug and Play manager tries to find a driver. If your device specifies class code 02 but a subclass code value other than 02, Usbser.sys doesn't load automatically. For more information, see Class definitions for Communication Devices 1.2. With this approach, you aren't required to distribute INF files for your device because the system uses Usbser.inf. If you want to load Usbser.sys automatically, set the class code to 02 and subclass code to 02 in the Device Descriptor. The driver is loaded based on a compatible ID match similar to other USB device class drivers included in Windows. You don't need to write your own INF to reference the driver. If your device belongs to the communications and CDC control device class, Usbser.sys is loaded automatically. Starting in Windows 10, Usbser.inf was added to the %Systemroot%\INF directory, which loads Usbser.sys as the functional device object (FDO) in the device stack. For the list of USB device class driver included in Windows, see USB device class drivers included in Windows. If they are not installed automatically, contact the device manufacturer. MsgBox strComputer & ": " & objSMBIOS.If you trying to install a USB device class driver included in Windows, you do not need to download the driver. ![]() Set colSMBIOS = objWMIService.ExecQuery ("Select * from Win32_SystemEnclosure") Set objWMIService = GetObject("winmgmts:" & "!\\" & strComputer & "\root\cimv2") StrComputer = InputBox("Enter the name of the computer:") Tip: You can use the command " wmic csproduct get name" to retrieve the local computer model. Please use one the method bellow to retrieve the computer serial number: The following article will help you to find the computer serial number Tips YOU SPECIFICALLY AGREE THAT IN NO EVENT SHALL MICROSOFT AND/OR ITS SUPPLIERS BE LIABLE FOR ANY DIRECT, INDIRECT, PUNITIVE, INCIDENTAL, SPECIAL, CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER INCLUDING, WITHOUT LIMITATION, DAMAGES FOR LOSS OF USE, DATA OR PROFITS, ARISING OUT OF OR IN ANY WAY CONNECTED WITH THE USE OF OR INABILITY TO USE THE INFORMATION AND RELATED GRAPHICS CONTAINED HEREIN, WHETHER BASED ON CONTRACT, TORT, NEGLIGENCE, STRICT LIABILITY OR OTHERWISE, EVEN IF MICROSOFT OR ANY OF ITS SUPPLIERS HAS BEEN ADVISED OF THE POSSIBILITY OF DAMAGES. MICROSOFT AND/OR ITS RESPECTIVE SUPPLIERS HEREBY DISCLAIM ALL WARRANTIES AND CONDITIONS WITH REGARD TO THIS INFORMATION AND RELATED GRAPHICS, INCLUDING ALL IMPLIED WARRANTIES AND CONDITIONS OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, WORKMANLIKE EFFORT, TITLE AND NON-INFRINGEMENT. ALL SUCH INFORMATION AND RELATED GRAPHICS ARE PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND. MICROSOFT CORPORATION AND/OR ITS RESPECTIVE SUPPLIERS MAKE NO REPRESENTATIONS ABOUT THE SUITABILITY, RELIABILITY, OR ACCURACY OF THE INFORMATION AND RELATED GRAPHICS CONTAINED HEREIN. Yuval Sinay MVP COMMUNITY SOLUTIONS CONTENT DISCLAIMER ![]()
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