9.19. 通用按钮设备

Device(BTNS)
{
Name(_HID, "ACPI0011")
Name(_CRS, ResourceTemplate() {
            GpioInt(Edge, ActiveBoth...) {pin}   //Vol Down
            GpioInt(Edge, ActiveBoth...) {pin}   //Vol Up
            GpioInt(Edge, ActiveBoth,...) {pin}  //Power (MUST BE ACTIVEBOTH!)
      })
Name(_DSD, Package(2) {
      //UUID for HID Button Descriptors:
      //ToUUID("FA6BD625-9CE8-470D-A2C7-B3CA36C4282E"),
      //Data structure for this UUID:
Package() {
      Package(5) {
         0,         //Declare a Collection
         1,         //Unique ID for this collection
         0,         //It is a top-level collection
         0x0c,      //Usage Page ("Consumer")
         0x01       //Usage ("Consumer Control")
      },
      Package(5) {
         0,         //Declare another Collection
         2,         //Unique ID for this collection
         0,         //Also a top-level collection
         0x01,      // Usage Page ("Generic Desktop")
         0x80       //Usage ("System Control")
      },
Package(5) {
         1,         //Declare a Control
         0,         //Interrupt index in \_CRS for Vol Down
         1,         //In the "Consumer Control" collection
         0x0c,      //Usage Page ("Consumer")
         0xEA       //Usage ("Volume Decrement")
      },
      Package(5) {
         1,         //Declare another Control
         2,         //Interrupt index for the Power Button
         2,         //In the "System Control" collection
         0x01,      //Usage Page ("Generic Desktop")
         0x81       //Usage ("System Power Down")
      },
      Package(5) {
         1,         //Declare another Control
         1,         //Interrupt index for the Vol Up button
         1,         //In the "Consumer Control" collection
         0x0c,      //Usage Page ("Consumer")
         0xE9       //Usage ("Volume Increment")
      },
      Package(5) {
         1,         //Another Control
      0xFF,         //No Interrupt for this one... e.g. OS-
                    // specific signaling for Rotation Lock
         1,         //In the "Consumer Control" collection
         0x0C,      //Usage Page ("Consumer")
         0x245      //Usage ("AC Rotate")
      }
         }
})
}// End Device