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SIR UART-based serial adapters are supported by the Windows component IrSIR.sys. IrSIR uses the services of the Windows NT serial driver Serial.sys or a Serial.sys-compatible serial driver to communicate with the IrDA hardware. Built-in SIR hardware should expose itself through the system BIOS with device ID PNP0510 or PNP0511.
FIR IrDA hardware must be exposed as an NDIS 4.0 miniport driver. FIR drivers can expose as many NDIS adapters as the driver can support. Each adapter is a unique IrDA transceiver that can support a unique instance of IrLAP. FIR hardware should have a unique device ID and an associated vendor-supplied driver. FIR hardware that is also compatible with SIR can also expose an alias device ID of PNP0510 or PNP0511 to allow SIR-only operation using IrSIR.
For more details on designing IrDA drivers for Windows please refer to Microsoft Windows Driver Development Kit (DDK).
