Fix rx_when_idle never being propagated to radio config #3
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- Add otPlatRadioSetRxOnWhenIdle callback in platform.rs for OpenThread C library builds that call it (e.g. when OT_RADIO_CAPS_RX_ON_WHEN_IDLE is supported) - Query link mode in plat_changed callback and sync rx_when_idle to radio_conf, ensuring the radio hardware is told to stay in receive mode when the Thread link mode requires it - Add plat_radio_set_rx_on_when_idle method in OtContext Previously, radio_conf.rx_when_idle was initialized to false and never updated, causing the ESP radio hardware to not stay in receive mode during idle periods. This led to missed 802.15.4 fragments and reassembly-timeout errors. Co-authored-by: ivmarkov <2607589+ivmarkov@users.noreply.github.com>
Co-authored-by: ivmarkov <2607589+ivmarkov@users.noreply.github.com>
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[WIP] Investigate rx_when_idle configuration in openthread
Fix rx_when_idle never being propagated to radio config
Feb 10, 2026
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radio_conf.rx_when_idleis initialized tofalseand never updated. The ESP radio hardware is never told to keep its receiver on during idle, causing missed 802.15.4 fragments and reassembly-timeout errors.Two issues compound here:
otPlatRadioSetRxOnWhenIdlewas not implementedotPlatRadioSetRxOnWhenIdle(symbol is unreferenced in all shipped.afiles), so implementing it alone is insufficientChanges
platform.rs: AddotPlatRadioSetRxOnWhenIdleextern callback — covers from-source builds where OT calls thislib.rs: QueryotThreadGetLinkMode().mRxOnWhenIdle()inplat_changedand sync toradio_conf— covers precompiled MTD libraries that fire state change callbacks but never callotPlatRadioSetRxOnWhenIdleupdate_rx_when_idlehelper to deduplicate the two update pathsFlow after fix
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