Acpi | Nsc6001 _hot_

Extensa 7620 - IrDA Fast Infrared Port Driver for Acer - DriverIdentifier

For hobbyists and engineers building a vintage-inspired system (like a modern 486- or Pentium-class system on a new board), the Coreboot source code contains explicit drivers for nsc_pc87360 -series super I/O chips, of which the NSC6001 logic is a part. Writing a Coreboot payload that initializes an NSC6001 means writing a small piece of code that sets up those legacy memory windows and IRQ routes before the OS even boots. When Linux boots and sees the ACPI0004 (NSC6001) device, its pc87360 driver matches, reads the pre-initialized state, and simply continues the handshake. acpi nsc6001

The NSC6001 is not a standard PC chipset (like Intel ICH). It handles: Extensa 7620 - IrDA Fast Infrared Port Driver

Ensure "Infrared Port" is set to "Enabled" and configured to "FIR" (not just SIR) for full speed. The NSC6001 is not a standard PC chipset (like Intel ICH)

This device was common on laptops from the mid-to-late 2000s, such as the Acer Extensa 5220

: It is an IrDA (Infrared Data Association) compliant fast infrared port.