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On recent Ideapad models the EC does not control the touchpad at all, so instead of sending KEY_TOUCHPAD_ON/ _OFF on touchpad toggle hotkey events, ideapad-laptop should send KEY_TOUCHPAD_TOGGLE and let userspace handle the toggling. Check for this by checking if the value read from VPCCMD_R_TOUCHPAD actually changes when receiving a touchpad-toggle hotkey event; and if it does not change send KEY_TOUCHPAD_TOGGLE to userspace to let userspace enable/disable the touchpad in software. Note this also drops the priv->features.touchpad_ctrl_via_ec check from ideapad_sync_touchpad_state() so that KEY_TOUCHPAD_TOGGLE will be send on laptops where this is not set too. This can be safely dropped now because the i8042_command(I8042_CMD_AUX_ENABLE/_DISABLE) call is now guarded by its own feature flag. Signed-off-by: Hans de Goede <hdegoede@redhat.com> Reviewed-by: Jiaxun Yang <jiaxun.yang@flygoat.com> Tested-by: Jiaxun Yang <jiaxun.yang@flygoat.com> Tested-by: Maxim Mikityanskiy <maxtram95@gmail.com> Link: https://lore.kernel.org/r/20221117110244.67811-5-hdegoede@redhat.com |
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