UCSI driver without Embedded controller RRS feed

  • Question

  • Hi,

    I am working on BIOS to implement UCSI communcation,

    But the Power devlivery controller chip has connected to PCH not Embedded controller.

    it' mean didn't have EC opRegion, so may i use I2CSerialBus()  to read/write PD chip directly when ACPI _DSM method be invoked?(ACPI 5.0 provide this method)

    so, Is this idea possible to do? 


    Wednesday, September 21, 2016 9:02 AM