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

intro(4)

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>.