bcmgpio(4) - NetBSD Manual Pages

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BCMGPIO(4)              NetBSD Kernel Interfaces Manual             BCMGPIO(4)


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 configura- tions 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>. NetBSD 9.99 February 17, 2017 NetBSD 9.99
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