HID: magicmouse: re-enable multitouch after reset-resume

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When the Apple Magic Trackpad 2 (USB) is reset across a power transition
(e.g. resume from hibernation) it drops out of multitouch mode: it keeps
sending report ID 0x02 on its HID_TYPE_USBMOUSE interface, but the packet
shrinks from 21 to 8 bytes and the trackpad2 handler drops it (size < 12).
Clicks still work but pointer motion is lost until the device is re-plugged
or the driver reloaded.

Re-enable multitouch from .reset_resume via the workqueue.  Only
.reset_resume is needed; suspend-to-idle keeps the device powered and
retains multitouch.

Fixes: 87a2f10395 ("HID: magicmouse: Apple Magic Trackpad 2 USB-C driver support")
Cc: stable@vger.kernel.org
Assisted-by: Claude-Code:claude-opus-4-8
Signed-off-by: Christopher Kodama <ckhordiasma@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.com>

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Christopher Kodama 2026-07-25 16:34:46 -04:00 • committed by Jiri Kosina

parent be00988cce

commit 4253fe22b1

1 changed files with 19 additions and 0 deletions

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drivers/hid/hid-magicmouse.c

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