NAME
gdiumiic —
Gdium specific GPIO I2C
controller
SYNOPSIS
gdiumiic0 at gpio0 offset 6 mask 0x81
gdiumiic0 at gpio0 offset 46 mask 0x03
iic0 at gdiumiic0
DESCRIPTION
The gdiumiic driver allows bit-banging an
I2C bus as a master using two GPIO pins. The first pin is used as a serial
clock (SCL) signal and the second as a serial data (SDA). Both GPIO pins
must be able to drive an output and the SDA pin must be also able to read an
input.
The gdiumiic driver is derived from the
gpioiic driver, using a different pin ordering, and
knowledge of the Gdium I2C bus configuration.
SEE ALSO
AUTHORS
The original gpioiic driver was written by
Alexander Yurchenko
<grange@openbsd.org>.