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Implement power button monitor, document device input devices

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Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
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Michael Smith
2026-02-13 20:07:37 +01:00
parent 0f653d4395
commit 3728e9499c
3 changed files with 48 additions and 39 deletions
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docs/sdlamp2-fsd.md
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@@ -43,6 +43,10 @@ This document specifies the functional requirements for an SDL2 based media play
## 6. Changelog
### 2026-02-13 — Power button monitor in device wrapper
- **Power button handling**: The `rg35xx-wrapper.sh` script now monitors `/dev/input/event0` (`axp2202-pek`) for `KEY_POWER` press events via `evtest`. On power button press, sends SIGTERM to sdlamp2 (which saves position and volume), waits 1 second, then calls `poweroff` for a clean shutdown.
### 2026-02-13 — Clean shutdown on SIGTERM/SIGINT
- **Signal handling**: sdlamp2 now catches SIGTERM and SIGINT via a `sig_atomic_t` flag checked in the main loop. On signal, the existing cleanup path runs (save position, save volume, close decoder, SDL_Quit) instead of being killed instantly. This ensures position is saved when the system shuts down or the process is terminated by a wrapper script.