```

     TWSI(3)						       TWSI(3)

     NAME
	  twsi - two-wire serial interface (TWSI) and inter-integrated
	  circuit (I²C) interface

     SYNOPSIS
	  bind -a #² /dev
	  /dev/twsi*

     DESCRIPTION
	  The twsi device serves a one-level directory containing one
	  file per TWSI	or I²C	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.

     FILES
	  #²/twsi*

     SOURCE
	  /sys/src/9/*/devtwsi.c

     BUGS
	  10-bit addressed devices are not supported.

	  No slave mode.

	  Setting the bus rate is not supported.

```