onewire(4) - NetBSD Manual Pages

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ONEWIRE(4)              NetBSD 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 connect-
     ing integrated circuits.  It is commonly used for connecting devices such
     as electronic keys, EEPROMs, temperature sensors, real-time clocks, secu-
     rity 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

        owid(4)     ID family type device
        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>.

NetBSD 5.0                       April 4, 2006                      NetBSD 5.0