Automated Labeling Module for Input Device Axes and Buttons
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Solution Overview
Problem
Applications in the X Window System lack access to information about input device buttons and axes, relying on conventions or direct access to low-level drivers, which is unreliable and impractical due to the complexity and variability of input devices.
Innovation Solution
An automated labeling module that accesses input device configuration data through a configuration API, transferring label information from the operating system to the windowing system, enabling applications to correctly interpret and utilize input device axes and buttons.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If applications manually configure input devices or rely on conventions, then applications can operate without accessing low-level drivers, but applications cannot reliably access accurate information about input device buttons and axes
Solution Approach 1:
The patent introduces an intermediary layer between applications and low-level input device drivers. This intermediary provides a standardized interface that translates diverse input device configurations into a uniform format accessible to applications, eliminating the need for applications to directly access complex low-level drivers while maintaining reliable access to accurate input device information
Solution Approach 2:
The patent segments the input device information access into distinct layers: the low-level driver layer that handles raw device data, an intermediary translation layer that processes and standardizes the information, and the application layer that receives standardized data. This segmentation allows each layer to handle its specific complexity independently while providing reliable information flow to applications
2Loss of information
If applications directly access low-level drivers, then applications can access detailed input device information, but applications require specific information about driver composition and function which is not practically available
Solution Approach 1:
The intermediary layer acts as a mediator that retrieves detailed input device configuration information from low-level drivers on behalf of applications. It handles the complexity of driver composition and function internally, presenting simplified standardized information to applications, thus preventing information loss while maintaining ease of operation
Solution Approach 2:
The patent creates a copied representation of input device information in a standardized format within the intermediary layer. Instead of applications directly accessing the original complex driver data, the intermediary creates and maintains a copied, standardized version that contains all necessary configuration information in an application-friendly format
3Adaptability or versatility
If applications rely on conventional button mappings, then applications can work with standard input devices, but applications fail when encountering non-conventional input device configurations
Solution Approach 1:
The intermediary layer implements a universal interface that can handle both conventional and non-conventional input device configurations. It provides multi-functional capability by translating various button and axes configurations into a standardized format that applications can reliably interpret, making the system adaptable to different device types while maintaining reliable functionality mapping
Solution Approach 2:
The patent transforms the parameter representation of input device configurations from device-specific formats to a standardized universal format. By changing the parameters into a common language, the system achieves both adaptability to various device configurations and reliability in mapping button functions, as applications always receive data in the expected standardized format
Data Source
AI summary
The automated labeling system provides access to the input mechanism axes and button semantic information to applications running in a windowing environment. This enables the applications to not have to have specific information or interface with the low level drivers of the input mechanism and can rely exclusively on the windowing system and its API to interface with the input devices attached to the computer system.