NAME
bcmgpio —
driver 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
evbarm/intro(4),
gpio(4)
HISTORY
The
bcmgpio driver first appeared in
NetBSD
7.0.
AUTHORS
The
bcmgpio driver was written by
Frank
Kardel
<
kardel@NetBSD.org>.