Pnp0ca0

In most modern computer architectures, the device presents itself under these specific hardware strings: ACPI\VEN_USB&DEV_C000 ACPI\USBC000 *PNP0CA0

Input your specific serial number or system model identifier.

At first glance, PNP0CA0 appears to be a random string of letters and numbers, but it is a crucial piece of a modern computer's Plug and Play hardware identifier system. Understanding this little-known ACPI device is key to diagnosing why your laptop might fail to charge, why an external monitor over USB-C won't work, or why a Linux distribution refuses to negotiate power delivery through a Thunderbolt dock. This article explores PNP0CA0 from every angle: its technical function, its relationship with USB-C and Power Delivery (PD), its controversial role in Linux hardware support, and how to troubleshoot it on Windows and other systems. pnp0ca0

Handles power negotiation between devices, such as determining which device is the "source" (charger) and which is the "sink" (receiving power).

Device Name: UCSI USB Connector Manager. ACPI\USBC000 <---- Device ID matches with our database. *USBC000. *PNP0CA0. Version: 0, DriverIdentifier In most modern computer architectures, the device presents

If the PNP0CA0 device is disabled, broken, or missing, the operating system goes blind regarding that USB-C port. As one kernel developer famously noted, even if the physical port is there, the OS might still act as if the port does not exist for specific high-level functions.

This comprehensive guide details the purpose of the PNP0CA0 identifier, how the underlying technology works, and the step-by-step methods required to resolve common driver conflicts. 🛠️ What is the PNP0CA0 Device? This article explores PNP0CA0 from every angle: its

The PNP0CA0 identifier is typically used in conjunction with other ACPI device IDs, such as PNP0C0A, PNP0C0B, and PNP0C0D, to identify specific ACPI devices, such as battery controllers, thermal zones, and power management units. These device IDs are used by the operating system to configure and interact with the corresponding ACPI devices.

: Published by Intel , this white paper details how the BIOS interacts with the Embedded Controller (EC) via the USB Type-C Connector System Software Interface (UCSI). It explicitly lists PNP0CA0 as the Compatible ID ( _CID ) for the USB Type-C device within the ACPI namespace. Key Technical Context

Right-click the Windows Start menu button and open .