OPPO Kernel Craftsman
Sep 11, 2020 · Fundamentals
Understanding the Android Input Subsystem: Definitions, Initialization, Registration, Matching, and Event Transmission
The Android input subsystem, built on the Linux kernel, abstracts devices with input_dev structures, handlers with input_handler callbacks, and bridges them via input_handle, initializing core services, registering devices and handlers, matching them, transmitting events through buffers, and delivering them to user space via evdev and the InputFlinger framework.
AndroidEvent HandlingInput Subsystem
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