[riot-notifications] [RIOT-OS/RIOT] nrf52/i2c: Use mutex and IRQ for blocking (#14165)

benpicco notifications at github.com
Fri May 29 15:25:42 CEST 2020


If there is a significant overhead for small transfers, we can just so what was proposed for DMA and fall back to polling if the transfer size is below a certain threshold.

The lpc2387 i2c driver uses the same pattern as proposed in this PR btw.

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