Advanced Configuration and Power Interface Specification

Advanced Configuration and Power Interface Specification
9.12.4 Example: Memory Device
Scope (\_SB){
Device (MEM0) {
Name (_HID, EISAID (“PNP0C80”))
Name (_CRS, ResourceTemplate () {
QWordMemory
ResourceConsumer,
,
MinFixed,
MaxFixed,
Cacheable,
ReadWrite,
0xFFFFFFF,
0x10000000,
0x30000000,
0,
,,)
}
}
}
9.13 _UPC (USB Port Capabilities)
This optional object is a method that allows the platform to communicate to the operating system,
certain USB port capabilities that are not provided for through current USB host bus adaptor
specifications (e.g. UHCI, OHCI and EHCI). If implemented by the platform, this object will be
present for each USB port (child) on a given USB host bus adaptor; operating system software can
examine these characteristics at boot time in order to gain knowledge about the system’s USB
topology, available USB ports, etc. This method is applicable to USB root hub ports as well as ports
that are implemented through integrated USB hubs.
Arguments:
None
Return Value:
A Package as described below
Return Value Information:
Package {
Connectable
Type
Reserved0
Reserved1
}
// Integer (BYTE)
// Integer (BYTE)
// Integer
// Integer)
Table 9-264 UPC Return Package Values
Element Object Type Description
Connectable Integer If this value is non-zero, then the port is connectable. If this value is zero, then
(BYTE) the port is not connectable.
524 April, 2015 Version 6.0