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Add udev rules to force ITE8353 touchpad driver binding

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- Add udev rule to unbind from hid-sensor-hub and bind to hid-multitouch
- Add i2c_hid_acpi.probe_defer parameter to help with device detection
- This should fix the touchpad being misidentified as a sensor hub
This commit is contained in:
Geir Okkenhaug Jerstad 2025-06-30 18:45:27 +02:00
parent 414f17a5a0
commit d5ea2514b4
1 changed files with 5 additions and 1 deletions
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6
machines/little-rascal/hardware-configuration.nix
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@ -92,11 +92,13 @@
# Additional services for touchpad support
services.udev.extraRules = ''
# ITE8353 touchpad support
# ITE8353 touchpad support - try to force proper driver binding
SUBSYSTEM=="i2c", KERNEL=="i2c-ITE8353:00", MODE="0664", GROUP="input"
SUBSYSTEM=="input", ATTRS{name}=="ITE8353:00*", MODE="0664", GROUP="input"
# Additional HID rules for touchpads
KERNEL=="hidraw*", ATTRS{idVendor}=="048d", ATTRS{idProduct}=="8353", MODE="0664", GROUP="input"
# Force unbind from hid_sensor_hub and rebind to hid_multitouch for ITE8353
ACTION=="add", SUBSYSTEM=="hid", ATTRS{idVendor}=="048d", ATTRS{idProduct}=="8353", ATTR{bInterfaceClass}=="03", ATTR{bInterfaceSubClass}=="01", ATTR{bInterfaceProtocol}=="02", RUN+="/bin/sh -c 'echo $kernel > /sys/bus/hid/drivers/hid-sensor-hub/unbind; echo $kernel > /sys/bus/hid/drivers/hid-multitouch/bind'"
'';
# Power management for AMD Ryzen 7 4700U
@ -128,6 +130,8 @@
"i2c_hid.debug=1"
# Ensure ACPI devices are properly detected
"acpi_enforce_resources=lax"
# Force ITE touchpad to be recognized as input device
"i2c_hid_acpi.probe_defer=1"
];
# TLP for better power management (alternative to power-profiles-daemon)