Date: Mon, 20 Apr 2020 14:20:46 +0000 From: bugzilla-noreply@freebsd.org To: bugs@FreeBSD.org Subject: [Bug 245654] ig4(4): Intel Bay Trail I2C not recognized Message-ID: <bug-245654-227-FsvnEncwHO@https.bugs.freebsd.org/bugzilla/> In-Reply-To: <bug-245654-227@https.bugs.freebsd.org/bugzilla/> References: <bug-245654-227@https.bugs.freebsd.org/bugzilla/>
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=245654 --- Comment #10 from Vladimir Kondratyev <wulf@freebsd.org> --- (In reply to xspbe3ho3p5uac from comment #9) There are only 6 /dev/iic* rather than 7. One device is still not configured. It looks like your ACPI BIOS has so called I2C OpRegion handler. I ported support for it from DragonFlyBSD recently but it is disabled by default as non tested. It is used by ACPI BIOS to communicate with peripheral devices e.g. battery charge controllers over I2C bus. It can be enabled with placing following line to /boot/loader.conf: hw.iicbus.enable_acpi_space_handler=1 You should reboot after that. I do not know how to test it though. Maybe verbose boot will reveal some debugging messages. -- You are receiving this mail because: You are the assignee for the bug.help
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