Pci Ven8086 Ampdev8c22 Ampsubsys309f17aa Amprev04 Patched May 2026

Given these IDs, the most probable real-world mapping is an Intel integrated audio/HD-audio (Realtek codec usually paired) or an Intel integrated SMBus/Serial ATA/AHCI controller variant on a Lenovo laptop/desktop using an Intel 8-series chipset.

The identifier pci ven8086 &dev8c22 &subsys309f17aa &rev04 patched is not something you type. It appears in diagnostic output.

Without this driver, you may experience:

Hope this helps anyone Googling this specific string! pci ven8086 ampdev8c22 ampsubsys309f17aa amprev04 patched

The keyword ends with amprev04 patched. In driver development and system administration, "patched" typically refers to one of three scenarios for a PCI device:

Open a terminal and run:

lspci -nn -v

You might see:

00:1f.2 SATA controller [0106]: Intel Corporation 8 Series/C220 Series SATA AHCI Controller [8086:8c22] (rev 04)
        Subsystem: Lenovo Device [17aa:309f]
        Kernel driver in use: ahci
        Kernel modules: ahci

If patched, the dmesg output would show:

ahci 0000:00:1f.2: quirk: enabling Lenovo 309f power management patch
ahci 0000:00:1f.2: link speed forced to 3.0 Gbps due to rev04 erratum

The keyword "patched" is the most critical part of this string. In a perfect world, hardware works out-of-the-box with generic drivers. The fact that someone sought out or created a patch indicates one of several underlying issues.

For the average computer user, strings like pci ven8086 &dev8c22 &subsys309f17aa &rev04 look like random noise. For system administrators, firmware engineers, and Linux kernel developers, however, this sequence is a precise set of coordinates pointing to a specific piece of silicon on a motherboard. When the word "patched" is appended, it signals an intervention—a modification to the default behavior of a hardware component. Given these IDs, the most probable real-world mapping

This article provides a comprehensive analysis of this exact PCI device identifier, explains what each segment means, why a patch might be necessary, and the implications of running a "patched" version of its driver or firmware.

If you are seeing this hardware ID in an error state, do not immediately search for a "patched" driver. Follow this professional remediation path: