Advanced Configuration and Power Interface Specification

ACPI-Defined Devices and Device-Specific Objects
Example:
Device (\_SB.NOD0) {
Name (_HID, "ACPI0004")
// Module device
Name (_UID, 0)
Name (_PRS, ResourceTemplate() {
WordIO (
ResourceProducer,
MinFixed,
// _MIF
MaxFixed,,,
// _MAF
0x0000, // _GRA
0x0000, // _MIN
0x7FFF,
// _MAX
0x0, // _TRA
0x8000) // _LEN
DWordMemory (
ResourceProducer,, // For Main Memory + PCI
MinNotFixed,
// _MIF
MaxNotFixed,
// _MAF
Cacheable,
// _MEM
ReadWrite,
// _RW
0x0FFFFFFF,
// _GRA
0x40000000, // _MIN
0x7FFFFFFF,
// _MAX
0x0, // _TRA
0x00000000) // _LEN
})
Method (_SRS, 1) { ... }
Method (_CRS, 0) { ... }
Device (MEM0) {
// Main Memory (256MB module)
Name (_HID, EISAID("PNP0C80"))
Name (_UID, 0)
Method (_STA, 0) {
// If memory not present --> Return(0x00)
// Else if memory is disabled --> Return(0x0D)
// Else --> Return(0x0F)
}
Name (_PRS, ResourceTemplate () {
DWordMemory (,,,,
Cacheable,
// _MEM
ReadWrite,
// _RW
0x0FFFFFFF,
// _GRA
0x40000000, // _MIN
0x7FFFFFFF,
// _MAX
0x0, // _TRA
0x10000000) // _LEN
})
Method (_CRS, 0) { ... }
Method (_SRS, 1) { ... }
Method (_DIS, 0) { ... }
}
Device (MEM1) {
// Main Memory (512MB module)
Name (_HID, EISAID("PNP0C80"))
Name (_UID, 1)
Method (_STA, 0) {
}
Name (_PRS, ResourceTemplate () {
DWordMemory (,,,,
// If memory not present --> Return(0x00)
// Else if memory is disabled --> Return(0x0D)
// Else --> Return(0x0F)
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