Serial enumeration filter driver enabled or disabled for VCP driver
04/96/2016 | 12:20 AM
How can I determine if the serial enumeration filter driver is enabled for a CP210x device with the VCP driver?
Two versions of the CP210x Virtual COM port driver are available for download. The default version comes with serial enumeration disabled. The second version enables serial enumeration. To determine which driver was installed, users can launch Device Manager and view the driver properties to check if the serenum.sys system file is loaded.
To verify that serial enumeration is enabled or disabled, perform the following steps:
1. Launch Device Manager, right click on a CP210x device under Ports (COM & LPT), and click Properties.
2. Select the Driver tab and click Driver Details to display a list of driver files.
3. If the serial enumeration filter driver is enabled, serenum.sys will be listed under Driver files.
4. If serenum.sys is not listed, then the serial enumeration filter driver is disabled:
For more information about serial enumeration, see the following article: