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PCALED(4) Device Drivers Manual PCALED(4)

NAME

pcaledPhilips PCA9532/PCA9552 GPIO LED dimmer

SYNOPSIS

pcaled* at iic?
gpio* at pcaled?

DESCRIPTION

The pcaled driver provides support for the Philips PCA9532 and PCA9552 GPIO controllers which are specifically optimized to dim LEDs in 256 discrete steps.

SEE ALSO

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

HISTORY

The pcaled driver first appeared in OpenBSD 4.0.

AUTHORS

The pcaled driver was written by Dale Rahn <drahn@openbsd.org>.
July 16, 2013 OpenBSD-current