PCAGPIO(4) | Device Drivers Manual | PCAGPIO(4)

# 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>.

July 16, 2013 | Debian