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Date:      Tue, 18 Nov 2014 15:33:52 +0000
From:      bugzilla-noreply@freebsd.org
To:        freebsd-arm@FreeBSD.org
Subject:   [Bug 195009] [patch]: [arm] Use 400 kHz as the default OMAP4 I2C bus speed
Message-ID:  <bug-195009-7-HBwE0wABhg@https.bugs.freebsd.org/bugzilla/>
In-Reply-To: <bug-195009-7@https.bugs.freebsd.org/bugzilla/>
References:  <bug-195009-7@https.bugs.freebsd.org/bugzilla/>

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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=195009

--- Comment #7 from Ian Lepore <ian@FreeBSD.org> ---
You need to reset the bus after changing the speed with sysctl to make the
change take effect, i2c -r -f /dev/iic#.  I'm waiting for a review from the
documentation team before I check in the new manpage that tells you that.  :)

Also, I forgot to mention in the commit message, but I checked the bus speeds
with an oscilloscope on a beaglebone white to verify that the new divisors are
correct.  I also verified that i2c eeprom devices can be read at all 3 speeds. 
I don't have hardware to test omap4.

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