Esp idf port

.github/workflows/upload_component.yml

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+name: Publish to ESP Component Registry
+
+# Publishes the component to https://components.espressif.com whenever a
+# release tag (e.g. v3.1.0) is pushed. Requires an IDF_COMPONENT_API_TOKEN
+# secret created from your Espressif registry account.
+on:
+  push:
+    tags:
+      - "v*"
+  workflow_dispatch:
+
+jobs:
+  upload:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: Upload component
+        uses: espressif/upload-components-ci-action@v2
+        with:
+          name: "ps2keyboard"
+          namespace: "lahirunirmalx"
+          api_token: ${{ secrets.IDF_COMPONENT_API_TOKEN }}

.gitignore

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+# ESP-IDF / PlatformIO build artifacts
+build/
+.pio/
+managed_components/
+dependencies.lock
+
+# Per-project IDF config (defaults live in sdkconfig.defaults)
+sdkconfig
+sdkconfig.old
+
+# Component archive produced by `compote component pack`
+dist/
+*.tgz
+
+# Editor / OS noise
+.vscode/
+.idea/
+.DS_Store

CHANGELOG.md

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+# Changelog
+
+All notable changes to this component are documented here. This project
+adheres to [Semantic Versioning](https://semver.org/).
+
+## [3.1.0] - 2026-05
+
+### Added
+- Native ESP-IDF port: pure `driver/gpio` + `esp_timer`, IRAM ISR, plain C API.
+- ESP Component Registry packaging (manifest metadata, examples, LICENSE).
+
+### Notes
+- Supersedes the Arduino-only line for ESP-IDF projects.
+
+## [3.0.0] - 2026-01
+
+### Added
+- ESP32 / ESP8266 (Arduino) support.
+- Caps / Num / Scroll Lock LED control.
+
+## [2.x]
+
+- Multi-platform Arduino library (Uno, Mega, Due, Teensy).

CMakeLists.txt

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+idf_component_register(
+    SRCS
+        "src/ps2keyboard.c"
+        "src/ps2keymap_us.c"
+    INCLUDE_DIRS
+        "include"
+    REQUIRES
+        driver
+        esp_timer
+)