[riot-notifications] [RIOT-OS/RIOT] WIP: sys/net/gnrc/netif: make use of confirm_send (#15821)

José Alamos notifications at github.com
Thu Jan 21 11:32:54 CET 2021

> I really think we should aim to do that in all radios. Even SPI radios have mechanisms to do that quite fast (e.g the at86rf2xx requires only one SPI instruction to fetch the event). Of course fetching the frame from the radio would be done from thread context. But besides solving synchronization issues (and giving some determinism to the radios), this would help us in the long run to reduce some overhead (e.g we can simply rely on semaphores, mutex, etc).

We would need an asynchronous SPI API though, But I'm sure it could be a mid-term goal

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