Plan 9 /sys/man/3/twsi

NAME

twsi – two–wire serial interface (TWSI) and inter–integrated circuit (I⁲C) interface

SYNOPSIS

bind –a #⁲ /dev /dev/twsi*

DESCRIPTION

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.

FILES

#⁲/twsi*

SOURCE

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


	twsi – two–wire serial interface (TWSI) and inter–integrated circuit (I⁲C) interface


	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.