Siemens SIMATIC Industrial PC status LEDs
Front-panel status LEDs on Siemens SIMATIC industrial PCs, used on factory-floor controllers and panel computers like the IPC127E, IPC227G, and IPC427E. The code covers several generations of the same product line, from older models that drive the LEDs through legacy I/O ports to newer ones that wire them through Intel Apollo Lake or Elkhart Lake GPIOs or a Nuvoton F7188x super-I/O chip.
recommendation
It should stay because the hardware is still actively sold by Siemens in 2025, with the IPC127E, IPC227G, and IPC427E all listed as current products in the Siemens Industry Mall. The directory was only renamed into its current location in March 2025 and has been quiet since, which reads as stable maintenance rather than neglect, and there is no other in-tree driver that handles these Siemens-specific platforms.
repository signals
sources
- git.kernel.org
Kernel history shows this directory was renamed to drivers/leds/simatic in March 2025, so it is a recently-added/renamed in-tree driver block rather than long-abandoned legacy code.
- mall.industry.siemens.com
Siemens lists SIMATIC IPC127E as an active product with ordering and lead-time information, indicating new sales in the 2025 timeframe.
- mall.industry.siemens.com
Siemens lists SIMATIC IPC427E as an active product, matching one of the SIMATIC IPC families covered by these LED drivers.
- mall.industry.siemens.com
Siemens lists SIMATIC IPC227G as an active product, matching another SIMATIC IPC family explicitly referenced by this driver set.
codex reasoning notes (technical)
Local inspection via exec_command showed real platform_driver LED code, not helper-only content. exec_command git history showed only one visible path commit locally (2025-03-07 rename to simatic); no follow-up churn suggests stable, quiet maintenance rather than neglect. Attempted lore lookup via exec_command using lei, but lei was unavailable; fallback web search on lore returned no removal-thread hits, so there is no evidence of active upstream removal discussion. Web search_query results from Siemens Industry Mall show covered SIMATIC IPC families (IPC127E, IPC227G, IPC427E) still sold as active products, so the hardware is not obsolete in 2025 even if deployments are industrial-niche and relatively low-volume. No clear upstream replacement covers the same Siemens-specific platform glue end-to-end, so removal/deprecation is not justified.