BCMGPIO(4) Kernel Interfaces Manual BCMGPIO(4)

NAME

bcmgpiodriver for BCM2835 onboard gpio

SYNOPSIS

bcmgpio0 at obio?
bcmgpio1 at obio?
gpio* at gpiobus?

DESCRIPTION

The bcmgpio driver supports up to two instances. Access to the pins is provided by the gpio(4) interface. The bcmgpio unitnumber argument selects the pin range. Unit 0 covers GPIO pins 0 through 31 and unit 1 covers pins 32 through 53. GPIO pins being used in alternate configurations are not available for GPIO operations.

SEE ALSO

gpio(4), intro(4)

HISTORY

The bcmgpio driver first appeared in NetBSD 7.0.

AUTHORS

The bcmgpio driver was written by Frank Kardel <kardel@NetBSD.org>.
April 21, 2014 NetBSD 7.1