What is ucm-ucsi acpi device?

The UCM-UCSI (Unified Configuration and Charging Interface - USB Type-C Connector System Software Interface) ACPI (Advanced Configuration and Power Interface) device is a standardized interface for USB Type-C devices. It provides a common interface for configuring and charging USB Type-C devices in a consistent and interoperable manner.

The UCM-UCSI ACPI device enables the operating system to communicate with the USB Type-C controller using a standard interface. This allows the operating system to manage the configuration and charging of USB Type-C devices without requiring proprietary drivers from the device manufacturer.

Some of the key features of the UCM-UCSI ACPI device include:

• USB Type-C Configuration: The UCM-UCSI interface provides a standardized way to configure USB Type-C devices. This includes setting the role of the device (e.g. host or peripheral), configuring the power delivery settings, and setting the alternate modes for video or data transfer.
• USB Type-C Charging: The UCM-UCSI interface also provides a standardized way to manage USB Type-C charging. This includes detecting the charging state of the device, setting the charging current, and managing the charging profile.

Overall, the UCM-UCSI ACPI device is an important part of the USB Type-C ecosystem, helping to ensure compatibility and interoperability between different USB Type-C devices and operating systems.