feat: optional HackerGadgets AIO V1/V2 extension board support - #5
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Add an opt-in AIO_BOARD build-time toggle (unset / v1 / v2) that enables the HackerGadgets uConsole AIO board (RTL-SDR / LoRa SX1262 / GPS / PCF85063A RTC / USB hub). Unset leaves the image byte-for-byte unchanged. - build.sh: AIO_BOARD setting + validation; apply_aio_config() appends the board's CM4 overlays (i2c-rtc,pcf85063a / spi1-1cs; GPS via existing enable_uart=1) to /boot/config.txt after reapply_boot_config. v2 also drives the GPIO-gated GPS/LoRa/SDR/internal-USB rails high (gpio=7,16,23,27=op,dh, verified against the vendor guide). AIO_BOARD is threaded into the chroot env. - build-kernel.sh: enable rtc-pcf85063 and spidev modules unconditionally (only load when the board is present). - customize.sh: gated /etc/modprobe.d blacklist of the RTL2832 DVB drivers so libusb SDR tools can claim the dongle. - Docs (README/MAINTAINING, EN+JA): usage, env-var row, and the on-device update caveat (update.sh reinstalls config.txt, resetting AIO lines). Hardware enablement only; userspace SDR/LoRa apps (SDR++/meshtasticd) are left to the user since the vendor's apt/.deb packages don't exist on Arch. Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
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概要 / Summary
HackerGadgets uConsole AIO V1/V2 拡張ボード（RTL-SDR / LoRa SX1262 / GPS / PCF85063A RTC / USB ハブ）をオプトインで有効化できるようにします。
SKIP_CHROOTと同じ流儀のビルド時トグルAIO_BOARD（未設定 /v1/v2）を追加。未設定なら既定イメージは完全に不変です。公式セットアップガイド
変更点 / Changes
build.sh:AIO_BOARD設定＋バリデーション。apply_aio_config()が CM4 用オーバーレイ（i2c-rtc,pcf85063a/spi1-1cs、GPS は既存のenable_uart=1）をreapply_boot_configの後に/boot/config.txtへ追記。v2は GPIO 制御の GPS/LoRa/SDR/内部USB ラインを high に（gpio=7,16,23,27=op,dh）。AIO_BOARDを chroot 環境へ受け渡し。scripts/build-kernel.sh:rtc-pcf85063/spidevをモジュールとして常時有効化（ボードが無ければロードされないので無害）。scripts/customize.sh:AIO_BOARD設定時のみ RTL2832 系 DVB ドライバを/etc/modprobe.dでブラックリスト化（libusb SDR ツールがドングルを掴めるように）。update.shがconfig.txtを再配置し AIO 行をリセットする点）。スコープ / Scope
ハードウェア有効化のみ。ユーザ空間 SDR/LoRa アプリ（SDR++/meshtasticd）はベンダの apt/.deb が Arch に存在しないため焼き込まず、README で AUR を案内。
検証 / Verification
bash -n build.sh scripts/*.shOKAIO_BOARD未設定 → config.txt md5 不変（既定パス安全）v1/v2で正しいブロック追記（v2 はgpio=行あり）、不正値は拒否dmesg/timedatectlのrtc-pcf85063、/dev/spidev1.*、rtl_testでの確認が必要。🤖 Generated with Claude Code