PCALED(4) - Device Drivers Manual
PCALED(4) - Device Drivers Manual # PCALED(4) - Device Drivers Manual NAME # pcaled - Philips 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. ...