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 10.99                   February 17, 2017                  NetBSD 10.99