NAME
onewire —
1-Wire bus
SYNOPSIS
onewire* at gpioow?
option ONEWIREVERBOSE
DESCRIPTION
1-Wire bus was originally developed by Dallas Semiconductor for connecting integrated circuits. It is commonly used for connecting devices such as electronic keys, EEPROMs, temperature sensors, real-time clocks, security chips, etc.
The onewire driver provides a uniform
programming interface layer between 1-Wire master controllers and various
1-Wire slave devices. Each 1-Wire master controller attaches a
onewire framework; several slave devices can then be
attached to the onewire bus.
The driver supports plugging and unplugging slave devices on the fly.
SUPPORTED MASTERS
- gpioow(4)
- 1-Wire bus bit-banging through GPIO pin
SUPPORTED SLAVES
- owtemp(4)
- temperature family type device
SEE ALSO
HISTORY
The onewire driver first appeared in
OpenBSD 4.0 and NetBSD
4.0.
AUTHORS
The onewire driver was written by
Alexander Yurchenko
<grange@openbsd.org>
and ported to NetBSD by Jeff
Rizzo
<riz@NetBSD.org>.