Date: Wed, 06 Nov 2024 21:22:19 +0000 From: bugzilla-noreply@freebsd.org To: bugs@FreeBSD.org Subject: [Bug 282592] Framework Laptop 16: Touchpad driver crashes on boot Message-ID: <bug-282592-227@https.bugs.freebsd.org/bugzilla/>
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=282592 Bug ID: 282592 Summary: Framework Laptop 16: Touchpad driver crashes on boot Product: Base System Version: CURRENT Hardware: amd64 OS: Any Status: New Severity: Affects Only Me Priority: --- Component: kern Assignee: bugs@FreeBSD.org Reporter: dhs@frame.work On the Framework Laptop 16, the touchpad driver (sys/dev/hid/hmt.c) crashes on boot. This only occurs when the touchpad is present. If the touchpad is disconnected on boot, the EC will pretend to be the touchpad and send the exact same HID report descriptor to the OS as the touchpad does. The difference is that it won't send any HID reports and does not respond to any GET_REPORT requests, except for report ID 2 where it returns the bytes `{0x04, 0x00, 0x02, 0x05, 0x00, 0x00, 0x00, 0x00}`. See: https://github.com/FrameworkComputer/EmbeddedController/commit/9d49389919c36e44e451514b8278b9eb7ee6ed1e Analysing the crashdump it seems we crashed in this line: https://github.com/freebsd/freebsd-src/blob/609fa228bae6d864558f5167d4a964aab2a5fc88/sys/dev/hid/hmt.c#L757 But looking at the HID report descriptor `left_button` will be 2 and there is no matching Usage that could land us in this if branch. -- You are receiving this mail because: You are the assignee for the bug.home | help
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