PCAGPIO(4) - Device Drivers Manual #

PCAGPIO(4) - Device Drivers Manual

NAME #

pcagpio - Philips PCA955[4567] GPIO controller

SYNOPSIS #

pcagpio* at iic? gpio* at pcagpio?

DESCRIPTION #

The pcagpio driver provides support for the Philips PCA955[4567] GPIO controllers. The PCA955[467] devices have 8 pins and the PCA9555 device has 16 pins which can be configured as either inputs or outputs, and accessed using gpioctl(8).

SEE ALSO #

gpio(4), iic(4), intro(4), gpioctl(8)

HISTORY #

The pcagpio driver first appeared in OpenBSD 3.9.

AUTHORS #

The pcagpio driver was written by Theo de Raadt <deraadt@openbsd.org>.

OpenBSD 7.5 - July 16, 2013