mirror of
https://github.com/ByteWelder/Tactility.git
synced 2026-08-18 07:55:06 +00:00
d6b1d15e56
- Auto-select widgets in Launcher and apps with toolbars on devices without touch. - Improved USB HID input reliability, cleanup - Updated PSRAM settings to improve boot stability on supported devices. - Prevented duplicate Wi-Fi event subscriptions during screen rebuilds. - Updated docs - Fixes in WifiManage and WifiConnect - Reduced main task stack size - Moved USB HID stack size to PSRAM when available - app_manager_find_manifest() now returns a copy instead of a pointer
11 lines
1.1 KiB
Markdown
11 lines
1.1 KiB
Markdown
# Architecture: Device/Driver/Module System (kernel layer, C API)
|
|
|
|
The kernel uses a Linux-inspired device model:
|
|
|
|
- **Module** (`struct Module`): loadable unit that registers drivers, hardware and symbols. Lifecycle: `module_construct` → `module_add` → `module_start`. Each device board and platform is a module.
|
|
- **Driver** (`struct Driver`): binds to devices via `compatible` strings (like devicetree). Has `start_device`/`stop_device` callbacks and an `api` pointer for type-specific operations.
|
|
- **Device** (`struct Device`): represents hardware. Lifecycle: `device_construct` → `device_add` → `device_start`. Has a parent-child tree, driver binding, and locking.
|
|
- **DeviceType** (`struct DeviceType`): enables discovering devices by category (e.g. `DISPLAY_TYPE`, `TOUCH_TYPE`, `UART_CONTROLLER_TYPE`).
|
|
|
|
Devices are defined via **devicetree** `.dts` files in each `Devices/<id>/` folder. A custom devicetree compiler (`Buildscripts/DevicetreeCompiler/compile.py`) generates C code from these files. Each device folder also has a `devicetree.yaml` specifying dependencies and the `.dts` file.
|