Various improvements (#614)

- 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
This commit is contained in:
Ken Van Hoeylandt
2026-08-13 20:30:47 +02:00
committed by GitHub
parent cc8be3faef
commit d6b1d15e56
53 changed files with 603 additions and 1089 deletions
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# Architecture: Hardware Abstraction Layer
## Driver
A driver generally consists of:
- Registration of driver in parent module (optional, but desirable)
- YAML bindings in the `bindings/` folder
- An `#include` that is used in the `.dts` file. The include is in `[projectname]/bindings/[drivername].h`
- The driver implementation: a `.cpp` and `.h` file. The implementation is C++, but the header exposes pure C functions. C implementations are allowed, but C++ is preferred.
Drivers are part of a kernel module.
Modules with drivers can be stored in:
- TactilityKernel
- A subproject in `Platforms` folder
- A subproject in `Devices` folder
- A subproject in `Drivers` folder
## Kernel Modules
Kernel module names are lower case and postfixed with `-module`.
Projects that are kernel modules:
1. Declare a `struct Module`
2. Contain a `devicetree.yaml` file that declares a list of dependencies (for parsing the devicetree) and specifies the bindings folder that contains the drivers' YAML definitions. For example:
```yaml
dependencies:
- TactilityKernel
bindings: bindings
```