19 lines
1.1 KiB
Nix
19 lines
1.1 KiB
Nix
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{...}: {
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flake.nixosModules.t480UsbWakeup = {...}: {
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services.udev.extraRules = ''
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# Wake the T480 from S3 suspend via a keyboard plugged into a built-in USB
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# port. The dock connects over the Thunderbolt-3 controller (3c:00.0), which
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# powers down in S3 and cannot detect a cold replug — so dock-connected input
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# cannot wake the machine after an unplug-triggered suspend. The built-in xHCI
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# (00:14.0) stays wake-capable in S3, so a keyboard on a built-in port works.
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#
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# Arm the built-in xHCI root hubs (idVendor 1d6b = Linux Foundation root hub),
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# scoped to the built-in controller so the TB3 root hubs are left untouched.
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ACTION=="add", SUBSYSTEM=="usb", KERNELS=="0000:00:14.0", ATTR{idVendor}=="1d6b", ATTR{power/wakeup}="enabled"
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# Arm the IQUNIX MQ80 keyboard itself. Match by VID:PID — the USB bus path
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# is unstable across re-enumeration, so path-based matching is unreliable.
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ACTION=="add", SUBSYSTEM=="usb", ATTR{idVendor}=="320f", ATTR{idProduct}=="5055", ATTR{power/wakeup}="enabled"
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'';
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};
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}
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