Date: Thu, 23 Mar 2017 12:34:55 -0500 From: Karl Denninger <karl@denninger.net> To: "freebsd-arm@freebsd.org" <freebsd-arm@freebsd.org> Subject: Re: i2c on Pi3? Message-ID: <f1c3c4bb-976c-05ba-24ec-212bc9412a33@denninger.net> In-Reply-To: <DAC58CC9-9D1C-483F-B748-3BD20A8245CE@thehowies.com> References: <0b83d41a-1a9e-28cc-6ecd-03e6a63a06a2@denninger.net> <DAC58CC9-9D1C-483F-B748-3BD20A8245CE@thehowies.com>
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[-- Attachment #1 --] On 3/23/2017 12:34, John Howie wrote: > Hi Karl, > > I can only speak to the Raspberry Pi 2 kernel, but I2C is supported. For an example how to use it from userland, check out a project I posted on github eighteen months ago, that was for the PiFace RTC. > > https://github.com/jhowie/FreeBSDPiFaceRTC > > There are useful routines I created for working with devices on the I2C bus, which you are free to use. They are not RPI2-specific, so they should work on other boards. > > Regards, > > John > > > On 3/23/17, 10:03 AM, "Karl Denninger" <owner-freebsd-arm@freebsd.org on behalf of karl@denninger.net> wrote: > > The Wiki shows it identifying, but I can't find a reference to a driver > in the arm64 declarations, and a -CURRENT build just now doesn't find it. > > Simple omission in the kernel config or something more? > > -- > Karl Denninger > karl@denninger.net <mailto:karl@denninger.net> > /The Market Ticker/ > /[S/MIME encrypted email preferred]/ > > It works on the Pi2; I am using it in production. The driver appears to be /missing /in the Pi3 kernel. -- Karl Denninger karl@denninger.net <mailto:karl@denninger.net> /The Market Ticker/ /[S/MIME encrypted email preferred]/ [-- Attachment #2 --] 0 *H 010 `He 0 *H \0X0@=0 *H 01 0 UUS10UFlorida10U Niceville10U Cuda Systems LLC1 0UCuda Systems LLC CA1"0 *H Cuda Systems LLC CA0 161218194535Z 211217194535Z0W1 0 UUS10UFlorida10U Cuda Systems LLC10Ukarl@denninger.net0"0 *H 0 ͍fd`1ie6";fSz`5¹/?{=Ӵowj ħ_fnӴMG\ҢҖ4ib}>@mJo&m M; Q9U cj] p퐆W.2E= ^¢tzĄ'5i7_ `~#dY `]R]N%R}EXzqV@[oN T>5AwYˡA "\v&YG]+($p:M,T?=mJkMљg*ym L! J[./d?W^LysD'1 +V'~{-SSX = q-f=%&V<m4 BeSet| l2m 6iO{wv + aH Xˈ5=~é*C!?uJr3tb' 3`Oe)üLxt&3N526 llU .|Cp[l? 007++0)0'+0http://cudasystems.net:88880 U 0 0 `HB0 U 0, `HB OpenSSL Generated Certificate0 U /Zi 0GhG0 U #0$q}ݽʒm50 U 0karl@denninger.net0 *H b% X% gwq Ɂэr K[DMJ35W6 sz8d|qB2Cyw2PbV} â[!W{HD7oD.TZ'w6~g( -,]R8P{*[f<1=7 jGj9铚~3f2AʺN k~@vz^j(>ͺyh2y { /9}4.45#S|<fW!.,Bss*Q+h =}l@ "q "M&6J5*,G {hɫjbNgǠ.ЃXȶ4$O.5evHlZba!4eE!x|Za1nZ5TuPvW|#G+ DZpI7S'n0 haGa@vZ e|]Cu+))vRyY10001 0 UUS10UFlorida10U Niceville10U Cuda Systems LLC1 0UCuda Systems LLC CA1"0 *H Cuda Systems LLC CA=0 `He M0 *H 1 *H 0 *H 1 170323173459Z0O *H 1B@4(q^M[3t= Al. , kB?@:a^CA~!>KJy>'0l *H 1_0]0 `He*0 `He0 *H 0*H 0 *H @0+0 *H (0 +71001 0 UUS10UFlorida10U Niceville10U Cuda Systems LLC1 0UCuda Systems LLC CA1"0 *H Cuda Systems LLC CA=0 *H 101 0 UUS10UFlorida10U Niceville10U Cuda Systems LLC1 0UCuda Systems LLC CA1"0 *H Cuda Systems LLC CA=0 *H qwmB%Mm|אgLH4=pjJoǠ"+ s&AΒBcV衎,d%fg,ex] ĴY݂8*pq[Q* <ӡ[ T"o-pCF݆{- AXg;u×jfMDꭁE ⮑iuWR݈c &m9%ҍL(5>~-h Is+inSv &@˖UId:/-b#O28f/#"e/TH<ډ16t\ %+ vt6H Df$鱉3"j, TbC~a|$ 06'<5 ̂aO#s)՞(Nl27`\qG6)PHeK U')|<8p `p#i UO \}i}dnń)Z7O @ ވMg#.athelp
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