I2C

I2C is used at run time in 10 crates (of which 8 optionally). It is a direct run-time dependency in 4 crates.

Depender (with downloads and own rev deps)			I2C version
2.5K	4	i2c-linux	optional	^0.1.0
500	1	ddc-i2c		^0.1
		i2c-i2cdev		^0.1.0
380	2	nvapi	optional	^0.1.0