BCMGPIO(4) | Device Drivers 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 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>.

February 17, 2017 | NetBSD 9.0