I2C send nack

[elamre]

Hello, is it possible to send a nack back after reading out data? it defaults on an ACK, but some project I'm working on expects a nack after reading out some bytes. I can't find any way to currently do this in Periph.

[maruel]

Depends on the underlying device driver. For linux, I did:

git clone https://github.com/torvalds/linux
cd linux
git checkout v5.17
git grep -i nack -- "**i2c**" | grep -v "^driver"

I couldn't quickly figure out what's the trick.