Date: Sat, 25 Feb 2017 16:59:13 +0200 From: Andriy Gapon <avg@FreeBSD.org> To: Wolfgang Zenker <wolfgang@lyxys.ka.sub.org>, freebsd-stable@FreeBSD.org Subject: Re: cyapa(4) and isl(4) no longer working on Acer C720 Message-ID: <357d6dda-6137-7246-bd33-b7e5d8f20667@FreeBSD.org> In-Reply-To: <2763492b-6c8c-08c1-17ca-13e1d94f5543@FreeBSD.org> References: <20170225131023.GA94128@lyxys.ka.sub.org> <2763492b-6c8c-08c1-17ca-13e1d94f5543@FreeBSD.org>
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On 25/02/2017 16:46, Andriy Gapon wrote: > On 25/02/2017 15:10, Wolfgang Zenker wrote: >> Hi, >> >> I'm using FreeBSD 11 on a chromebook Acer C720. Because I normally >> use a mouse I didn't catch the exact time when cyapa and isl stopped >> working, but my guess is it was when chromebook_framework was introduced >> and cyapa and isl were moved to using iic. >> >> A manual page chromebook_platform(4) does not exist. Maybe the Acer is >> sufficiently different from other chromebooks that chromebook_platform >> does not work here. In that case I'm supposed to set device hints for >> the isl and cyapa drivers where to find their iic resources, according >> to https://github.com/freebsd/freebsd-base-graphics/commit/e2eab8e254154d36ebd6fde573f86e6472b75572 >> Unfortunately I have no idea where to find the information that would >> be needed for this. > The manual page actually exists... but only in the source code :-( > share/man/man4/chromebook_platform.4 > Mea culpa. > > You can look through this Linux source file to check for information that's > relevant to your laptop: > http://lxr.free-electrons.com/source/drivers/platform/chrome/chromeos_laptop.c In fact, could you please try this trivial patch? Index: sys/dev/chromebook_platform/chromebook_platform.c =================================================================== --- sys/dev/chromebook_platform/chromebook_platform.c (revision 314268) +++ sys/dev/chromebook_platform/chromebook_platform.c (working copy) @@ -69,7 +69,7 @@ * See http://lxr.free-electrons.com/source/drivers/platform/chrome/chromeos_laptop.c */ controller = device_get_parent(bus); - if (strcmp(device_get_name(controller), "ig4iic") != 0) + if (strcmp(device_get_name(controller), "ig4iic_pci") != 0) return; for (i = 0; i < nitems(slaves); i++) { Seems like I overlooked this when reviewing https://svnweb.freebsd.org/base?view=revision&revision=310621 -- Andriy Gapon
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