[riot-notifications] [RIOT-OS/RIOT] [RFC] netdev: change receive mechanism (#11652)
Juan I Carrano
notifications at github.com
Fri Jun 7 13:37:00 CEST 2019
My impression here is that these problems are caused in great part by not being able to start I/O operations (i.e. SPI transfers) from interrupts.
If that was possible and if a fixed size buffer was already available at reception time, then:
1. The driver gets a RX interrupt.
2. A (nonblocking) transfer operation is started from the interrupt.
3. Upon completion, the upper layer is notified (via a message).
What am I missing?
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