[riot-notifications] [RIOT-OS/RIOT] gnrc_netif: add packet to queue when device is busy (#11263)

Kaspar Schleiser notifications at github.com
Tue Mar 26 11:04:06 CET 2019

> Initial gut feeling for this API change is positive. I think it simplifies a few device drivers as those don't have to block anymore until the radio is done transmitting the previous frame. I know that at least the mrf24j40 has a clunky `while(not_in_the_right_state) {}` loop that might be refactored out with this change.

My feelings exactly. Now we can finally make the drivers just return "-EBUSY" when it currently cannot send.

Conceptionally this is a rather large change, so I suggest we don't rush it into the release.

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