Date: Tue, 05 Jul 2016 18:45:46 +0000 From: Malcolm Matalka <mmatalka@gmail.com> To: Vladimir Kondratyev <wulf@cicgroup.ru> Cc: Matthias Apitz <guru@unixarea.de>, freebsd-mobile@freebsd.org, owner-freebsd-mobile@freebsd.org Subject: Re: psm(4) support for Elantech touchpads Message-ID: <864m83zzxh.fsf@gmail.com> In-Reply-To: <a0404ef5cff678023e4cdb1f8850ad1c@localhost> (Vladimir Kondratyev's message of "Mon, 04 Jul 2016 11:55:08 %2B0300") References: <20160703185028.GA2151@c720-r292778-amd64> <6d9d3a0a34a740e76c644f4154c02576@localhost> <a0404ef5cff678023e4cdb1f8850ad1c@localhost>
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Vladimir Kondratyev <wulf@cicgroup.ru> writes: > On 2016-07-04 00:15, Vladimir Kondratyev wrote: >> On 2016-07-03 21:50, Matthias Apitz wrote: >>> Hello Vladimir, >>> >>> I own an Acer C720 (aka Chromebook) which worked fine concerning the >>> touchpad with the cyapa driver in CURRENT. After a repair in Acer.com >>> they said that they have had to change the keyboard and the touchpad and >>> it now does not attach anymore to the cyapa.ko; it seems that it was >>> replace by an Elan TP and while googlöing for support I found your >>> posting from September 2015. I have applied the patch to r292778 but the >>> code is not walked through because it says on verbose boot: >>> >>> atkbd0: [GIANT-LOCKED] >>> random: harvesting attach, 8 bytes (4 bits) from atkbd0 >>> psm0: unable to allocate IRQ >>> >>> Any ideas about this? Thanks in advance >>> >>> matthias >> >> Hi, Matthias >> >> I`m afraid that device resource management is not what I`m familiar with. Sorry. >> Mouse type detection starts 200 lines below IRQ initialization so this >> message should not depend on my patch. >> Quick googling shows that this is most probably an ACPI issue but that >> all I was able to find >> >> WBR, Vladimir Kondratyev >> > > After some investigations its turned out that some modern ElanTPs use I2C interface not PS/2 > so they can not be handled with my patch. Its necessary to port new driver from Linux > https://lwn.net/Articles/496137/ or from OpenBSD where it has name > imt(4) I'd like to try to port this driver over to FreeBSD, does anyone have any suggestions of something to read or willing to help mentor me in that? I know nothing about doing this but would really like to get my Trackpad working! > > _______________________________________________ > freebsd-mobile@freebsd.org mailing list > https://lists.freebsd.org/mailman/listinfo/freebsd-mobile > To unsubscribe, send any mail to "freebsd-mobile-unsubscribe@freebsd.org"
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