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SKGPIO(4) Device Drivers Manual (i386) SKGPIO(4)

NAME

skgpioSoekris net6501 GPIO and LEDs

SYNOPSIS

skgpio0 at isa? port 0x680
gpio* at skgpio?

DESCRIPTION

The skgpio driver provides support for the GPIO and LEDs as implemented by the Xilinx Spartan FGPA integrated into the Soekris net6501 programmed with the default bitstream found in the BIOS.
Two standard gpio(4) interfaces are provided, one for the 16 real pins which can be configured as either inputs or outputs and another with 2 output-only pins that map to the error and ready LEDs respectively. Both may be used with gpioctl(8).

SEE ALSO

gpio(4), intro(4), isa(4), gpioctl(8)

HISTORY

The skgpio driver first appeared in OpenBSD 5.7.

AUTHORS

The skgpio driver was written by Matt Dainty ⟨matt@bodgit-n-scarper.com⟩.

BUGS

If the Xilinx FPGA is programmed with a different bitstream, the driver will likely not function.
October 22, 2015 OpenBSD-current