NAME
mcp23s17gpio —
Driver for MCP23S17 gpio
chip via SPI bus
SYNOPSIS
mcp23s17gpio0 at spi? slave 0 flags 0
mcp23s17gpio1 at spi? slave 0 flags 1
mcp23s17gpio2 at spi? slave 0 flags 2
mcp23s17gpio3 at spi? slave 0 flags 3
gpio* at gpiobus?
DESCRIPTION
The
mcp23s17gpio driver supports up to 8 instances of the
MCP23S17 16-bit GPIO chips. Access to the pins is provided by the
gpio(4) interface. The
mcp23s17gpio flags argument selects
the hardware address of the chip instance.
SEE ALSO
gpio(4),
intro(4),
spi(4)
HISTORY
The
mcp23s17gpio driver first appeared in
NetBSD 7.0.
AUTHORS
The
mcp23s17gpio driver was written by
Frank
Kardel
<
kardel@NetBSD.org>.