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1 comment:

• File src/mainboard/google/guybrush/variants/dewatt/gpio.c:

  • Patch Set #2, Line 43: LEVEL_LOW

    FW_CONFIG probe is pretty much free isn't it?

    It is more to do with the HID over I2C ACPI specification than the trackpad vendor differences.

    As per HID over I2C Protocol Specification[1] Version 1.00 Section 7.4, the interrupt line used by the device is required to be level triggered.

    http://download.microsoft.com/download/7/d/d/7dd44bb7-2a7a-4505-ac1c-7227d3d96d5b/hid-over-i2c-protocol-spec-v1-0.docx

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