List of drivers for IrDA National Semiconductor

This collection provides National Semiconductor IrDA drivers for infrared controllers and transceivers found in laptops, docking stations and embedded systems. Available files include signed installers and INF packages for Windows (legacy XP/Vista through modern 64-bit builds where supported), Linux kernel modules and source patches, and archived OEM variants tailored for specific laptop models.

Each download page lists version, file size, checksum and a README with install instructions. For Windows, use the supplied setup.exe or Update Driver in Device Manager and point to the extracted INF; on Linux follow the build/load steps (make, insmod/modprobe) in the package. Verify compatibility by matching the device hardware ID (PCI/USB VEN/DEV/VID/PID) and OS build; 32-bit vs 64-bit and driver signing requirements may affect installation on newer systems. If issues occur, try alternate driver versions, enable IrDA in BIOS/firmware, or consult the included troubleshooting notes before contacting OEM support.