From owner-freebsd-current@freebsd.org Tue Jun 21 14:19:53 2016 Return-Path: Delivered-To: freebsd-current@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id 094A6AC5FDA for ; Tue, 21 Jun 2016 14:19:53 +0000 (UTC) (envelope-from imre@vdsz.com) Received: from mout.kundenserver.de (mout.kundenserver.de [212.227.126.187]) (using TLSv1.2 with cipher DHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client CN "mout.kundenserver.de", Issuer "TeleSec ServerPass DE-2" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 5CD0C2976 for ; Tue, 21 Jun 2016 14:19:51 +0000 (UTC) (envelope-from imre@vdsz.com) Received: from vdsz.de ([188.68.58.236]) by mrelayeu.kundenserver.de (mreue001) with ESMTPSA (Nemesis) id 0M78fW-1bd5z10OpS-00x5nI; Tue, 21 Jun 2016 16:19:49 +0200 Received: from localhost (vdsz.de [local]) by vdsz.de (OpenSMTPD) with ESMTPA id 0cef26b0; Tue, 21 Jun 2016 16:19:48 +0200 (CEST) Date: Tue, 21 Jun 2016 16:19:48 +0200 From: Imre Vadasz To: freebsd-current@freebsd.org Cc: "Lundberg, Johannes" Subject: Re: Intel Atom I2C Message-ID: <20160621141948.GA679813@albireo.intra.vdsz.de> References: <20160621140018.GA679553@albireo.intra.vdsz.de> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: User-Agent: Mutt/1.6.1 (2016-04-27) X-Provags-ID: V03:K0:C6A6Kc9K4iMPV6p0G9mk+h7mAGLwptxySds4thxNHvamEfbKixA TQUkbP9x35C1xUKS+qcH7GtXpAhuxbLgG7pkzq3p8cepx+hQv8UkvvWpyDzIwJ5MJG3Kifc gEEOlQy0rCRP6vIPr4XyxxNzcvTveZffHfGrWZ6r+BDFNuQHXKrIlp6KRV/84ILoyVgZtfR UHFZSxn1hiyedqn+ScMVA== X-UI-Out-Filterresults: notjunk:1;V01:K0:95AucNbHlwg=:kPTGjFxmVJPl/REe6N56Wj d9c3gmQYSqdnWVYl7ckHjlwIda8XLj/DbK30DU2umTcUHfaabkFKCDXqnHZzDPDeW07aqNmSF ZMy8Kyjf4FSWi2h7KwmA79Ilxcm0rBEUloEvPrqS6yeG6CTsPPTO9B/45v/TdM6GEVfr9ZZKu S1WivGz7n9N0QOQfXAcl1jd/W6sFZ0BFo+UYMRgyHY3Wd4ydx0ewo+QeXlG4QJeU/GCLHbMYf 6nWJrgfUZq4ETBeuUCRTj4H7Ula7bZNV6FuonxMce0Fa+1rk11f78pP6a1r2iPkIQDJSr5pMX wb/oQ/DpMXqSBrpPrrvQZUlZzFB+IOPuVrd/FYa7XSHOT7XpVZxfohpHivD7s7euQ+WCRIraj R8U1NYP3FlGHW7Nr79zwyxWbQlNNr780NDXo6tXnVOhKDpEdmLXafZV8UuxR0EC/nzvx+Q18D u1D7smGDcp6BRR4YNluC/VGn7lsNdLv0ceb+geHaKkF0lBr54lStd20G1+aB/kSANisTM3jnH qdKlJDzh7m+OGKxCmh+Dx5P/LTxxmRePvFBO+gHFBMYiz652kH8G7kdqbou3gygFUTA2FnikB 6o0b6pLfmqdkus5bmQ5swYhbhymcZReH/tziAUI/Avgj+6YdSBYdUvRVGsMwUmoFDDZAY+iY/ YNoBxnZEN3p/FxQSXAihjzbQsR0/bBsBot/nDcOYXhr44xvKJwK+ljaf4PVVVZepeESg= X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.22 Precedence: list List-Id: Discussions about the use of FreeBSD-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 21 Jun 2016 14:19:53 -0000 Hi, On 07:05 Tue 21 Jun , Lundberg, Johannes wrote: > Hi Imre > > Thanks for the info! May I ask, isn't your system UEFI, same as mine? Last > I tried DragonFly didn't support UEFI... Yes, the HP x2 210 is UEFI only, but DragonFly *can* boot from UEFI :) I did a port of FreeBSD's UEFI bootloader to DragonFly, which I commited ca. 2 months ago, and I added basic support in the kernel for UEFI booting. Only UEFI support in DragonFly's installer is still missing :( > > I also had hangs when probing certain I2C controller (maybe it was the > 7th...) > > Perhaps using linuxkpi and the linux driver would be a good option for > this. i915 uses I2C and it works with basically unmodified Intel source > code. Or maybe I try to port your efforts later :) It's not really an option here, to use the linux driver, since this I2c bus has to integrate tightly with the operating-system for the ACPI operation region handling, and the I2cSerialBus resource handling. > On Tue, Jun 21, 2016 at 7:00 AM, Imre Vadasz wrote: > > > So autodetection via smbus(4) probably shouldn't be used at all for this > > kind of I2c/smbus. > > On my HP x2 210 Cherryview tablet it even causes the system to hard freeze, > > when running the autodetection on the 7th I2C controller. > > > > Imre > > > > -- > =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=- > 秘密保持について：この電子メールは、名宛人に送信したものであり、秘匿特権の対象となる情報を含んでいます。 > もし、名宛人以外の方が受信された場合、このメールの破棄、およびこのメールに関する一切の開示、 > 複写、配布、その他の利用、または記載内容に基づくいかなる行動もされないようお願い申し上げます。 > --- > CONFIDENTIALITY NOTE: The information in this email is confidential > and intended solely for the addressee. > Disclosure, copying, distribution or any other action of use of this > email by person other than intended recipient, is prohibited. > If you are not the intended recipient and have received this email in > error, please destroy the original message.