Comment 9 for bug 96692

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00:1f.1 IDE interface [0101]: Intel Corporation 631xESB/632xESB IDE Controller [8086:269e] (rev 09) (prog-if 8f [Master SecP SecO PriP PriO])
 Subsystem: Intel Corporation Unknown device [8086:7270]
 Control: I/O+ Mem- BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B-
 Status: Cap- 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR-
 Latency: 0
 Interrupt: pin A routed to IRQ 20
 Region 0: I/O ports at 30e8 [size=8]
 Region 1: I/O ports at 30fc [size=4]
 Region 2: I/O ports at 30e0 [size=8]
 Region 3: I/O ports at 30f8 [size=4]
 Region 4: I/O ports at 30c0 [size=16]

00:1f.2 IDE interface [0101]: Intel Corporation 631xESB/632xESB/3100 Chipset SATA Storage Controller IDE [8086:2680] (rev 09) (prog-if 8f [Master SecP SecO PriP PriO])
        Subsystem: Intel Corporation Unknown device [8086:7270]
        Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B-
        Status: Cap+ 66MHz+ UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR-
        Latency: 0
        Interrupt: pin B routed to IRQ 21
        Region 0: I/O ports at 30d8 [size=8]
        Region 1: I/O ports at 30f4 [size=4]
        Region 2: I/O ports at 30d0 [size=8]
        Region 3: I/O ports at 30f0 [size=4]
        Region 4: I/O ports at 3020 [size=16]
        Region 5: Memory at 52f04400 (32-bit, non-prefetchable) [size=1K]
        Capabilities: [70] Power Management version 2
                Flags: PMEClk- DSI- D1- D2- AuxCurrent=0mA PME(D0-,D1-,D2-,D3hot+,D3cold-)
                Status: D0 PME-Enable- DSel=0 DScale=0 PME-
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This time with "sudo" so the Capabilities are shown instead of "Permission denied" ;-)
So yeah, 2680 is still missing on the ahci device list. Not sure why because IIRC that is also in the spec for esb2.