Power policy owner for a serial device stack that includes Serial. Plug and Play, power management, and Windows Management Instrumentation (WMI). Serial's operation as a filter driver is identical to its operation as a function driver. An example of this configuration is a modem on a PCMCIA bus. Serial implements the Serial service its executable image is Serial.sys.Ī function driver for legacy and Plug and Play serial devices.Ī lower-level device filter driver for Plug and Play devices that require a 16550 UART-compatible interface. ![]() SerCx is available starting with Windows 8. ![]() SerCx2 is available starting with Windows 8.1. Serenum.sys enumerates devices that are connected to a serial port that is controlled by Serial.sys or a compatible serial driver.įor a comparison of Serial.sys to the serial framework extensions, SerCx2 and SerCx, see Serial Controller Drivers Overview. ![]() Serial.sys controls stand-alone serial ports, COM ports, and multiport boards. Starting with Windows 2000, the system-supplied Serial.sys and Serenum.sys drivers are available to manage serial controller devices that have hardware interfaces that are compatible with the 16550 universal asynchronous receiver-transmitter (UART).
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