Advanced Configuration and Power Interface Specification

ACPI-Defined Devices and Device-Specific Objects
//
// Root hub device for this host controller. This controller implements 3 root hub ports.
//
Device( RHUB) {
Name( _ADR, 0x00000000)
// Value of 0 is reserved for root HUB
// Root hub, port 1
Device( PRT1) {
// Address object for port 1. This value must be 1
Name( _ADR, 0x00000001)
// USB port capabilities object. This object returns the system
// specific USB port configuration information for port number 1
// Because this port is not connectable it is assumed to be not visible.
// Therefore a _PLD descriptor is not required.
Name( _UPC, Package(){
0x00, // Port is not connectable
0xFF,
// Connector type (N/A for non-visible ports)
0x00000000, // Reserved 0 – must be zero
0x00000000})
// Reserved 1 – must be zero
} // Device( PRT1)
//
// Root Hub, Port 2
//
Device( PRT2) {
// Address object for port 2. This value must be 2
Name(_ADR, 0x00000002)
Name( _UPC, Package(){
0xFF,
// Port is connectable
0x00, // Connector type – Type ‘A’
0x00000000, // Reserved 0 – must be zero
0x00000000})
// Reserved 1 – must be zero
Name( _PLD, Package(1) {
Buffer(0x14) {
0x82,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,
// provide physical port location info
// Revision 2, Ignore color
// Color (ignored), width and height not
// required as this is a standard USB ‘A’ type
// connector
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