Date: Tue, 7 Mar 2017 11:31:22 +0100 From: Gergely Czuczy <gergely.czuczy@harmless.hu> To: freebsd-arm@freebsd.org Subject: How to use SPI Message-ID: <46d1021c-2ca7-d60b-3548-86f064aa8530@harmless.hu>
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Hello,
I've just got a Raspberry PI3, and I would like to use a couple of
Adaruit MAX31856 breakout boards with it, which are using the SPI bus.
I've noticed that it apparently has kernel level spi drivers:
# kldstat -v | grep spi
259 simplebus/bcm2835_spi
109 spi/spibus
108 spi/ofw_spibus
However, I wasn't able to find anything in the userland which would
explain how to use it.
Currently I'm using a raspbsd image:
FreeBSD rpi3 12.0-CURRENT FreeBSD 12.0-CURRENT #0 r313109M: Thu Feb 2
16:16:39 MST 2017
raspberry@hive.raspbsd.org:/usr/home/brd/rpi3/crochet/work/obj/arm64.aarch64/usr/src/sys/GENERIC
arm64
Could you guys please give me a hand on starting using the SPI bus? I've
tried googling around a bit, but unfortunately not much came up.
Best regards,
Gergely
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