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Requirements for Vendor-Supplied Parallel Drivers
Requirements for Vendor-Supplied Parallel Drivers
vendor-supplied parallel drivers WDK , about vendor-supplied parallel drivers
03/03/2023

Requirements for Vendor-Supplied Parallel Drivers

This section describes Microsoft Windows requirements for vendor-supplied drivers for parallel ports and devices attached to parallel ports.

Vendor-supplied function drivers and bus drivers for parallel ports are not required because the system-supplied parallel drivers provide these functions. The system-supplied parallel drivers provide extensive support for operating parallel ports and devices attached to parallel ports.

Vendor-supplied function drivers for parallel devices attached to parallel ports are optional. The system-supplied parallel drivers provide extensive support for directly controlling a parallel device as a raw device, and for operating a device's parent parallel port.

If a vendor provides a function driver for a parallel device, the driver must support Plug and Play and power management. Microsoft recommends that the driver be a WDM driver.

The following topics describe how a vendor-supplied function driver for a parallel device operates a device and the device's parent parallel port:

Operating a Parallel Port

Operating a Parallel Device Attached to a Parallel Port