[Verse 1] Base device tree locked in silicon dreams Static hardware mapping, nothing what it seems But systems evolve and peripherals shift Overlays arrive like a runtime gift Fragment definitions patch the living code Dynamic reconfiguration, hot-swap mode [Chorus] Overlay syntax, fragment nodes align Target path pointing where new hardware shines Compatible strings and phandle refs Device tree surgery with surgical effects Runtime changes, no reboot required Kernel adaptation, systems rewired [Verse 2] DTS overlay files compile to DTBO Devicetree compiler makes the fragments flow Reference existing nodes by phandle link Status properties flip from disabled to sync Pin multiplexing shifts with overlay load GPIO controllers expand their episode [Chorus] Overlay syntax, fragment nodes align Target path pointing where new hardware shines Compatible strings and phandle refs Device tree surgery with surgical effects Runtime changes, no reboot required Kernel adaptation, systems rewired [Bridge] Configfs interface mounts the overlay store Echo apply and watch devices explore Remove the fragment, hardware disappears Clean device unbinding, no kernel fears Cape manager orchestrates the symphony BeagleBone shields dance in harmony [Verse 3] Industrial automation swaps sensor arrays FPGA configurations through overlay plays Robotic arms extend with modular parts Device tree fragments like component arts Production lines morph without downtime cost Overlay management keeps nothing lost [Chorus] Overlay syntax, fragment nodes align Target path pointing where new hardware shines Compatible strings and phandle refs Device tree surgery with surgical effects Runtime changes, no reboot required Kernel adaptation, systems rewired [Outro] Fragment zero targets, fragment one creates Overlay mechanisms orchestrate hardware fates Dynamic device trees bend but never break Runtime flexibility for embedded sake
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