twsi - two-wire serial interface (TWSI) and inter-integrated circuit (I⁲C) interface bind -a #⁲ /dev /dev/twsi* The twsi device serves a one-level directory containing one file per TWSI or I⁲C bus. Bytes written are transmitted on the bus; bytes received from the bus are queued and delivered by reading. Seeking to a given offset before reading or writing causes the twsi device to use that offset as a TWSI slave address for a subsequent read (2) or write call. #⁲/twsi* /sys/src/9/*/devtwsi.c 10-bit addressed devices are not supported.

No slave mode.

Setting the bus rate is not supported.