Date: Wed, 14 May 2014 09:11:00 +0400 From: Ruslan Bukin <br@bsdpad.com> To: Maxim Ignatenko <gelraen.ua@gmail.com> Cc: freebsd-hackers@freebsd.org Subject: Re: Keyboard drivers, polling vs. non-polling mode Message-ID: <20140514051100.GA86330@machdep.com> In-Reply-To: <CABWTX-Z7Kh1QHCgBeVs6NGzDkfYRCtfctJ5oij-Og5POqB5jEA@mail.gmail.com> References: <CABWTX-YViLKRS62cuWcJh=Ma_n3TjU2EEaAcijBzSFXGqiuMDQ@mail.gmail.com> <20140513084008.GA71115@machdep.com> <CABWTX-Z7Kh1QHCgBeVs6NGzDkfYRCtfctJ5oij-Og5POqB5jEA@mail.gmail.com>
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On Tue, May 13, 2014 at 11:17:58AM +0100, Maxim Ignatenko wrote: > I keep getting "fdb0: i2c transfer returned 6" and none of the printfs > I've added to iicbus_transfer_gen in sys/dev/iicbus/iiconf.c. You have problems with communication to EC. Forget about keyboard for a while and check i2c CS (chip select) and/or EC arbitration pins. Something is definitely goes different in HP implementation of Chromebook. Probably they used different GPIO pins. -Ruslan
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