/3/twsi

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.


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


	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.