Date: Thu, 21 Sep 2023 15:09:45 +0200 From: "Patrick M. Hausen" <pmh@hausen.com> To: freebsd-arm <freebsd-arm@freebsd.org> Subject: Re: FreeBSD 14, RPI CM3+ - how to use I2C? Message-ID: <6E552CD8-4248-4EBE-A919-2A56CA1A87FA@hausen.com> In-Reply-To: <8B10870E-C485-4626-BBCF-BEE0771D8B5A@hausen.com> References: <8B10870E-C485-4626-BBCF-BEE0771D8B5A@hausen.com>
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Hi, > Am 21.09.2023 um 14:10 schrieb Patrick M. Hausen <pmh@hausen.com>: > dtoverlay=3Di2c1,pins_44_45 > dtoverlay=3Di2c-rtc,mcp7940x >=20 > Source: = https://docs.turingpi.com/docs/turing-pi1-cluster-management-bus-i2c >=20 > Did that, but >=20 > i2c -s >=20 > shows now output [...] Turns out the FreeBSD installation does not come with all (?) overlays by default like e.g. Ubuntu. I downloaded the two missing files from here: https://github.com/raspberrypi/firmware and placed them in /boot/efi/overlays. Bingo: root@pi1:~ # i2c -s 57 5c root@pi1:~ # i2c -a 0x57 -o 0xf2 -d r -c 1 ff Now I finally understand what all of this weird stuff *is* - sort of ;-) Kind regards, Patrick=
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