ONEWIRE(4)

ONEWIRE(4) | Kernel Interfaces Manual | ONEWIRE(4)

# 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>.

April 4, 2006 | NetBSD 5.99