RxBackend

enum class fl::RxBackend : u8

strong

Enumerator
PIO	RP2040/RP2350 PIO receive backend.
PLATFORM_DEFAULT	Use the recommended backend for the active platform (RMT on ESP32; FlexPWM on Teensy 4.x with FLEXIO as an opt-in alternative — see FastLED#2764; LPC_SCT_CAPTURE on LPC845; native RX on stub/host builds).
RMT	ESP32-only RMT capture backend.
ISR	Platform-neutral interrupt-driven edge capture backend when available.
FLEXPWM	Teensy 4.x-only FlexPWM capture backend.
FLEXIO	Teensy 4.x-only FlexIO capture backend (FLEXIO1 — FLEXIO2 is owned by the WS2812 TX driver). Hardware-verified by flexioRxBenchmark (1/10/100 kHz square wave) and flexioObjectFledTest (5-pattern ObjectFLED loopback). See FastLED#2764.
LPC_SCT_CAPTURE	LPC8xx SCT input-capture + DMA edge backend (LPC845 et al). Capture path is a skeleton until follow-up bench validation lands — see FastLED#3015. Decoder + injectEdges() are fully functional and host-tested today.
PARLIO_RX	PARLIO 1-bit oversampling backend (ESP32-C6 et al) — DMA sampling at 16 MHz with no per-edge interrupt; the C6 answer to RMT RX being deaf to PARLIO/RMT clockless TX (FastLED#3586).
I2S_RX	Classic-ESP32 I2S 1-bit oversampling backend — DMA sampling at 16 MHz, capture length limited by RAM instead of the RMT one-shot 256-symbol block (FastLED#3576 Phase 3).

Definition at line 8 of file types.h.

                     : u8 {
    PIO = 7,               
    PLATFORM_DEFAULT = 0,  
    RMT = 1,               
    ISR = 2,               
    FLEXPWM = 3,           
    FLEXIO = 4,            
    LPC_SCT_CAPTURE = 5,   
    PARLIO_RX = 8,         
    I2S_RX = 6             
};