ACPI defined devices not showing up under /sys/bus/platform/devices

Hi,

I'm trying to help various users with Asus X450 and Asus X550 laptops to get their touchpad to work:

https://bugzilla.redhat.com/show_bug.cgi?id=1110011

We believe that this touchpad is connected over i2c, using the i2c-designware-platform driver.

If you look at the DSDT attached there you can clearly see nodes defines which should lead to e.g. :

/sys/bus/platform/devices/INT33C2:00

Showing up (which should then be bound by i2c-designware-platform).

But nothing is showing up, not a single ACPI defined device shows up actually:

[root@asusx550 devices]# ll
insgesamt 0
lrwxrwxrwx. 1 root root 0 22. Jul 14:56 alarmtimer -> ../../../devices/platform/alarmtimer
lrwxrwxrwx. 1 root root 0 25. Jul 23:54 asus-nb-wmi -> ../../../devices/platform/asus-nb-wmi
lrwxrwxrwx. 1 root root 0 25. Jul 23:54 coretemp.0 -> ../../../devices/platform/coretemp.0
lrwxrwxrwx. 1 root root 0 22. Jul 14:56 efi-framebuffer.0 -> ../../../devices/platform/efi-framebuffer.0 lrwxrwxrwx. 1 root root 0 22. Jul 14:56 Fixed MDIO bus.0 -> ../../../devices/platform/Fixed MDIO bus.0 lrwxrwxrwx. 1 root root 0 22. Jul 14:56 i8042 -> ../../../devices/platform/i8042
lrwxrwxrwx. 1 root root 0 25. Jul 23:54 iTCO_wdt -> ../../../devices/pci0000:00/0000:00:1f.0/iTCO_wdt lrwxrwxrwx. 1 root root 0 25. Jul 23:54 microcode -> ../../../devices/platform/microcode
lrwxrwxrwx. 1 root root 0 22. Jul 14:56 pcspkr -> ../../../devices/platform/pcspkr
lrwxrwxrwx. 1 root root 0 25. Jul 23:54 regulatory.0 -> ../../../devices/platform/regulatory.0
lrwxrwxrwx. 1 root root 0 25. Jul 23:54 rtsx_pci_ms.0 -> ../../../devices/pci0000:00/0000:00:1c.2/0000:02:00.0/rtsx_pci_ms.0 lrwxrwxrwx. 1 root root 0 25. Jul 23:54 rtsx_pci_sdmmc.0 -> ../../../devices/pci0000:00/0000:00:1c.2/0000:02:00.0/rtsx_pci_sdmmc.0 lrwxrwxrwx. 1 root root 0 22. Jul 14:56 serial8250 -> ../../../devices/platform/serial8250

Which is weird, since any recent machine usually has at least one or 2 show up.

Therefor I would like to ask your help with figuring out how to get the device nodes defined in the DSDT to actual show up.

Thanks & Regards,

Hans

It depends whether the BIOS has enabled those or not.

If

 # cat /sys/bus/acpi/devices/INT33C2:00/status
 # cat /sys/bus/acpi/devices/INT33C3:00/status

returns 0xf, then the device should be there, otherwise it is not.

The "status" refers directly shat _STA() ACPI method returns.

Note that the device could also be in PCI mode, in case lspci should show it.

Hi,

Interesting. Marcos, can you give this a try please ?

Ok, so assuming that Marcos' testing shows it is not enabled, is there anything we can, could there be some ACPI call to enable these devs ?

Right, it does not show in lspci.

Regards,

Hans

Hi,

Hans, both here returned 0. As I said to you, I'm using Fedora in insecure mode (I don't know if this changes anything).

That just means that your BIOS has disabled these devices. Unless there is a menu somewhere in BIOS setup to enable these, there is nothing we can do in the kernel to make them appear.

OK. So I think that this particular machine, either does not have Intel LPSS (it is not Haswell-LP) or the devices have been deliberately disabled for some reason.

Hi,

Interesting. This machine came with Windows 8, and removed. The touchpad was working on Windows. Mika, I verified my BIOS configurations and there isn't any configuration to enable PCI devices. Do you beleive there is something about secure boot? As it worked with Windows, hwo can it be detected on Linux?

How can I verify this?

Are you sure that your touch pad is connected to I2C bus in the first place?

In your ACPI DSDT, there is also a device called PS2M that happens to to look like touch pad to me. For example it reports one of these _HIDs:

                    Method (_HID, 0, NotSerialized)  // _HID: Hardware ID
                    {
                        If (SYNA)
                        {   
                            Return (0x190A2E4F)
                        }

                        If (ALPS)
                        {   
                            Return (0x0713A906)
                        }

                        If (ELAN)
                        {   
                            Return (0x08018416)
                        }

                        If (STLC)
                        {   
                            Return (0x41C18C4E)
                        }

                        If (FOLT)
                        {
                            Return (0x01019419)
                        }

                        Return (0x060A2E4F)
                    }

Have you checked if any of these are present in /sys/bus/acpi/devices/*?

Can you send me output of lspci -vv?

Hi Mika,

Yes. This is exactly the same:

                    Method (_HID, 0, NotSerialized)  // _HID: Hardware ID
                    {
                        If (SYNA)
                        {
                            Return (0x190A2E4F)
                        }

                        If (ALPS)
                        {
                            Return (0x0713A906)
                        }

                        If (ELAN)
                        {
                            Return (0x08018416)
                        }

                        If (STLC)
                        {
                            Return (0x41C18C4E)
                        }

                        If (FOLT)
                        {
                            Return (0x02019419)
                        }

                        Return (0x060A2E4F)
                    }

It I have a Haswell-ULT:

00:00.0 Host bridge: Intel Corporation Haswell-ULT DRAM Controller (rev 09)
Subsystem: ASUSTeK Computer Inc. Device 13fd
Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr-
Stepping- SERR- FastB2B- DisINTx-
Status: Cap+ 66MHz- UDF- FastB2B+ ParErr- DEVSEL=fast >TAbort-
<TAbort- <MAbort+ >SERR- <PERR- INTx-
Latency: 0
Capabilities: [e0] Vendor Specific Information: Len=0c <?>

00:02.0 VGA compatible controller: Intel Corporation Haswell-ULT Integrated Graphics Controller (rev 09) (prog-if 00 [VGA controller])
Subsystem: ASUSTeK Computer Inc. Device 13fd
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr-
Stepping- SERR- FastB2B- DisINTx+
Status: Cap+ 66MHz- UDF- FastB2B+ ParErr- DEVSEL=fast >TAbort-
<TAbort- <MAbort- >SERR- <PERR- INTx-

    Latency: 0
    Interrupt: pin A routed to IRQ 42
    Region 0: Memory at f7400000 (64-bit, non-prefetchable) [size=4M]
    Region 2: Memory at d0000000 (64-bit, prefetchable) [size=256M]
    Region 4: I/O ports at f000 [size=64]
    Expansion ROM at <unassigned> [disabled]
    Capabilities: [90] MSI: Enable+ Count=1/1 Maskable- 64bit-
        Address: fee0200c  Data: 41c1
    Capabilities: [d0] Power Management version 2
        Flags: PMEClk- DSI+ D1- D2- AuxCurrent=0mA 

PME(D0-,D1-,D2-,D3hot-,D3cold-)
Status: D0 NoSoftRst- PME-Enable- DSel=0 DScale=0 PME-
Capabilities: [a4] PCI Advanced Features
AFCap: TP+ FLR+
AFCtrl: FLR-
AFStatus: TP-
Kernel driver in use: i915
Kernel modules: i915

00:03.0 Audio device: Intel Corporation Haswell-ULT HD Audio Controller (rev 09)
Subsystem: Intel Corporation Device 2010
Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr-
Stepping- SERR- FastB2B- DisINTx+
Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort-
<TAbort- <MAbort- >SERR- <PERR- INTx-
Latency: 0, Cache Line Size: 64 bytes
Interrupt: pin A routed to IRQ 46
Region 0: Memory at f7a14000 (64-bit, non-prefetchable) [size=16K]
Capabilities: [50] Power Management version 2
Flags: PMEClk- DSI- D1- D2- AuxCurrent=0mA
PME(D0-,D1-,D2-,D3hot-,D3cold-)
Status: D0 NoSoftRst- PME-Enable- DSel=0 DScale=0 PME-
Capabilities: [60] MSI: Enable+ Count=1/1 Maskable- 64bit-
Address: fee0f00c Data: 4152
Capabilities: [70] Express (v1) Root Complex Integrated Endpoint,
MSI 00
DevCap: MaxPayload 128 bytes, PhantFunc 0
ExtTag- RBE-
DevCtl: Report errors: Correctable- Non-Fatal- Fatal-
Unsupported-
RlxdOrd- ExtTag- PhantFunc- AuxPwr- NoSnoop-
MaxPayload 128 bytes, MaxReadReq 128 bytes
DevSta: CorrErr- UncorrErr- FatalErr- UnsuppReq- AuxPwr-
TransPend-
Kernel driver in use: snd_hda_intel
Kernel modules: snd_hda_intel

00:14.0 USB controller: Intel Corporation 8 Series USB xHCI HC (rev 04) (prog-if 30 [XHCI])
Subsystem: ASUSTeK Computer Inc. Device 13fd
Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr-
Stepping- SERR- FastB2B- DisINTx+
Status: Cap+ 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort-
<TAbort- <MAbort- >SERR- <PERR- INTx-
Latency: 0
Interrupt: pin A routed to IRQ 41
Region 0: Memory at f7a00000 (64-bit, non-prefetchable) [size=64K]
Capabilities: [70] Power Management version 2
Flags: PMEClk- DSI- D1- D2- AuxCurrent=375mA
PME(D0-,D1-,D2-,D3hot+,D3cold+)
Status: D0 NoSoftRst+ PME-Enable- DSel=0 DScale=0 PME-
Capabilities: [80] MSI: Enable+ Count=1/8 Maskable- 64bit+
Address: 00000000fee0f00c Data: 41b1
Kernel driver in use: xhci_hcd

00:16.0 Communication controller: Intel Corporation 8 Series HECI #0 (rev 04)
Subsystem: ASUSTeK Computer Inc. Device 13fd
Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr-
Stepping- SERR- FastB2B- DisINTx+
Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort-
<TAbort- <MAbort- >SERR- <PERR- INTx-
Latency: 0
Interrupt: pin A routed to IRQ 44
Region 0: Memory at f7a1d000 (64-bit, non-prefetchable) [size=32]
Capabilities: [50] Power Management version 3
Flags: PMEClk- DSI- D1- D2- AuxCurrent=0mA
PME(D0+,D1-,D2-,D3hot+,D3cold+)
Status: D0 NoSoftRst+ PME-Enable- DSel=0 DScale=0 PME-
Capabilities: [8c] MSI: Enable+ Count=1/1 Maskable- 64bit+
Address: 00000000fee0f00c Data: 41e1
Kernel driver in use: mei_me
Kernel modules: mei_me

00:1b.0 Audio device: Intel Corporation 8 Series HD Audio Controller (rev 04)
Subsystem: ASUSTeK Computer Inc. Device 11bf
Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr-
Stepping- SERR- FastB2B- DisINTx+
Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort-
<TAbort- <MAbort- >SERR- <PERR- INTx-
Latency: 0, Cache Line Size: 64 bytes
Interrupt: pin A routed to IRQ 45
Region 0: Memory at f7a10000 (64-bit, non-prefetchable) [size=16K]
Capabilities: [50] Power Management version 3
Flags: PMEClk- DSI- D1- D2- AuxCurrent=55mA
PME(D0+,D1-,D2-,D3hot+,D3cold+)
Status: D0 NoSoftRst- PME-Enable- DSel=0 DScale=0 PME-
Capabilities: [60] MSI: Enable+ Count=1/1 Maskable- 64bit+
Address: 00000000fee0f00c Data: 4142
Capabilities: [70] Express (v1) Root Complex Integrated Endpoint,
MSI 00
DevCap: MaxPayload 128 bytes, PhantFunc 0
ExtTag- RBE-
DevCtl: Report errors: Correctable- Non-Fatal- Fatal-
Unsupported-
RlxdOrd- ExtTag- PhantFunc- AuxPwr- NoSnoop- MaxPayload 128 bytes, MaxReadReq 128 bytes
DevSta: CorrErr- UncorrErr- FatalErr- UnsuppReq- AuxPwr+
TransPend-
Capabilities: [100 v1] Virtual Channel
Caps: LPEVC=0 RefClk=100ns PATEntryBits=1
Arb: Fixed- WRR32- WRR64- WRR128-
Ctrl: ArbSelect=Fixed
Status: InProgress-
VC0: Caps: PATOffset=00 MaxTimeSlots=1 RejSnoopTrans-
Arb: Fixed- WRR32- WRR64- WRR128- TWRR128- WRR256-
Ctrl: Enable+ ID=0 ArbSelect=Fixed TC/VC=01
Status: NegoPending- InProgress-
VC1: Caps: PATOffset=00 MaxTimeSlots=1 RejSnoopTrans-
Arb: Fixed- WRR32- WRR64- WRR128- TWRR128- WRR256-
Ctrl: Enable- ID=2 ArbSelect=Fixed TC/VC=04
Status: NegoPending- InProgress-
Kernel driver in use: snd_hda_intel
Kernel modules: snd_hda_intel

00:1c.0 PCI bridge: Intel Corporation 8 Series PCI Express Root Port 1 (rev e4) (prog-if 00 [Normal decode])
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr-
Stepping- SERR- FastB2B- DisINTx-
Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort-
<TAbort- <MAbort- >SERR- <PERR- INTx-
Latency: 0, Cache Line Size: 64 bytes
Bus: primary=00, secondary=01, subordinate=01, sec-latency=0
Secondary status: 66MHz- FastB2B- ParErr- DEVSEL=fast >TAbort-
<TAbort- <MAbort+ <SERR- <PERR-
BridgeCtl: Parity- SERR- NoISA- VGA- MAbort- >Reset- FastB2B-
PriDiscTmr- SecDiscTmr- DiscTmrStat- DiscTmrSERREn-
Capabilities: [40] Express (v2) Root Port (Slot-), MSI 00
DevCap: MaxPayload 128 bytes, PhantFunc 0
ExtTag- RBE+
DevCtl: Report errors: Correctable- Non-Fatal- Fatal-
Unsupported-
RlxdOrd- ExtTag- PhantFunc- AuxPwr- NoSnoop-
MaxPayload 128 bytes, MaxReadReq 128 bytes
DevSta: CorrErr- UncorrErr- FatalErr- UnsuppReq- AuxPwr+
TransPend-
LnkCap: Port #1, Speed 5GT/s, Width x1, ASPM L0s L1, Exit
Latency L0s <1us, L1 <4us
ClockPM- Surprise- LLActRep+ BwNot+
LnkCtl: ASPM L0s L1 Enabled; RCB 64 bytes Disabled- CommClk-
ExtSynch- ClockPM- AutWidDis- BWInt- AutBWInt-
LnkSta: Speed 2.5GT/s, Width x0, TrErr- Train- SlotClk+
DLActive- BWMgmt- ABWMgmt-
RootCtl: ErrCorrectable- ErrNon-Fatal- ErrFatal- PMEIntEna-
CRSVisible-
RootCap: CRSVisible-
RootSta: PME ReqID 0000, PMEStatus- PMEPending-
DevCap2: Completion Timeout: Range ABC, TimeoutDis+, LTR+, OBFF
Via WAKE# ARIFwd-
DevCtl2: Completion Timeout: 50us to 50ms, TimeoutDis-, LTR+,
OBFF Disabled ARIFwd-
LnkCtl2: Target Link Speed: 5GT/s, EnterCompliance- SpeedDis-
Transmit Margin: Normal Operating Range,
EnterModifiedCompliance- ComplianceSOS-
Compliance De-emphasis: -6dB
LnkSta2: Current De-emphasis Level: -3.5dB,
EqualizationComplete-, EqualizationPhase1-
EqualizationPhase2-, EqualizationPhase3-,
LinkEqualizationRequest-
Capabilities: [80] MSI: Enable- Count=1/1 Maskable- 64bit-
Address: 00000000 Data: 0000
Capabilities: [90] Subsystem: ASUSTeK Computer Inc. Device 13fd
Capabilities: [a0] Power Management version 3
Flags: PMEClk- DSI- D1- D2- AuxCurrent=0mA
PME(D0+,D1-,D2-,D3hot+,D3cold+)
Status: D0 NoSoftRst- PME-Enable- DSel=0 DScale=0 PME-
Kernel driver in use: pcieport
Kernel modules: shpchp

00:1c.2 PCI bridge: Intel Corporation 8 Series PCI Express Root Port 3 (rev e4) (prog-if 00 [Normal decode])
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr-
Stepping- SERR- FastB2B- DisINTx-
Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort-
<TAbort- <MAbort- >SERR- <PERR- INTx-

    Latency: 0, Cache Line Size: 64 bytes
    Bus: primary=00, secondary=02, subordinate=02, sec-latency=0
    I/O behind bridge: 0000e000-0000efff
    Memory behind bridge: f7900000-f79fffff
    Secondary status: 66MHz- FastB2B- ParErr- DEVSEL=fast >TAbort- 

<TAbort- <MAbort+ <SERR- <PERR-
BridgeCtl: Parity- SERR- NoISA- VGA- MAbort- >Reset- FastB2B-
PriDiscTmr- SecDiscTmr- DiscTmrStat- DiscTmrSERREn-
Capabilities: [40] Express (v2) Root Port (Slot+), MSI 00
DevCap: MaxPayload 128 bytes, PhantFunc 0
ExtTag- RBE+
DevCtl: Report errors: Correctable- Non-Fatal- Fatal-
Unsupported-
RlxdOrd- ExtTag- PhantFunc- AuxPwr- NoSnoop- MaxPayload 128 bytes, MaxReadReq 128 bytes
DevSta: CorrErr- UncorrErr- FatalErr- UnsuppReq- AuxPwr+
TransPend-
LnkCap: Port #3, Speed 5GT/s, Width x1, ASPM L0s L1, Exit
Latency L0s <512ns, L1 <16us
ClockPM- Surprise- LLActRep+ BwNot+
LnkCtl: ASPM Disabled; RCB 64 bytes Disabled- CommClk+
ExtSynch- ClockPM- AutWidDis- BWInt- AutBWInt-
LnkSta: Speed 2.5GT/s, Width x1, TrErr- Train- SlotClk+
DLActive+ BWMgmt+ ABWMgmt-
SltCap: AttnBtn- PwrCtrl- MRL- AttnInd- PwrInd- HotPlug-
Surprise-
Slot #2, PowerLimit 10.000W; Interlock- NoCompl+
SltCtl: Enable: AttnBtn- PwrFlt- MRL- PresDet- CmdCplt-
HPIrq- LinkChg-
Control: AttnInd Unknown, PwrInd Unknown, Power- Interlock-
SltSta: Status: AttnBtn- PowerFlt- MRL- CmdCplt- PresDet+
Interlock-
Changed: MRL- PresDet- LinkState-
RootCtl: ErrCorrectable- ErrNon-Fatal- ErrFatal- PMEIntEna-
CRSVisible-
RootCap: CRSVisible-
RootSta: PME ReqID 0000, PMEStatus- PMEPending-
DevCap2: Completion Timeout: Range ABC, TimeoutDis+, LTR+, OBFF
Not Supported ARIFwd-
DevCtl2: Completion Timeout: 50us to 50ms, TimeoutDis-, LTR+,
OBFF Disabled ARIFwd-
LnkCtl2: Target Link Speed: 5GT/s, EnterCompliance- SpeedDis-
Transmit Margin: Normal Operating Range,
EnterModifiedCompliance- ComplianceSOS-
Compliance De-emphasis: -6dB
LnkSta2: Current De-emphasis Level: -3.5dB,
EqualizationComplete-, EqualizationPhase1-
EqualizationPhase2-, EqualizationPhase3-,
LinkEqualizationRequest-
Capabilities: [80] MSI: Enable- Count=1/1 Maskable- 64bit-
Address: 00000000 Data: 0000
Capabilities: [90] Subsystem: ASUSTeK Computer Inc. Device 13fd
Capabilities: [a0] Power Management version 3
Flags: PMEClk- DSI- D1- D2- AuxCurrent=0mA
PME(D0+,D1-,D2-,D3hot+,D3cold+)
Status: D0 NoSoftRst- PME-Enable- DSel=0 DScale=0 PME-
Capabilities: [100 v0] #00
Capabilities: [200 v1] L1 PM Substates
L1SubCap: PCI-PM_L1.2+ PCI-PM_L1.1+ ASPM_L1.2+ ASPM_L1.1+
L1_PM_Substates+
PortCommonModeRestoreTime=40us PortTPowerOnTime=10us
Kernel driver in use: pcieport
Kernel modules: shpchp

00:1c.3 PCI bridge: Intel Corporation 8 Series PCI Express Root Port 4 (rev e4) (prog-if 00 [Normal decode])
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr-
Stepping- SERR- FastB2B- DisINTx-
Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort-
<TAbort- <MAbort- >SERR- <PERR- INTx-
Latency: 0, Cache Line Size: 64 bytes
Bus: primary=00, secondary=03, subordinate=03, sec-latency=0
Memory behind bridge: f7800000-f78fffff
Secondary status: 66MHz- FastB2B- ParErr- DEVSEL=fast >TAbort-
<TAbort- <MAbort+ <SERR- <PERR-
BridgeCtl: Parity- SERR- NoISA- VGA- MAbort- >Reset- FastB2B-
PriDiscTmr- SecDiscTmr- DiscTmrStat- DiscTmrSERREn-
Capabilities: [40] Express (v2) Root Port (Slot+), MSI 00
DevCap: MaxPayload 128 bytes, PhantFunc 0
ExtTag- RBE+
DevCtl: Report errors: Correctable- Non-Fatal- Fatal-
Unsupported-
RlxdOrd- ExtTag- PhantFunc- AuxPwr- NoSnoop-
MaxPayload 128 bytes, MaxReadReq 128 bytes
DevSta: CorrErr- UncorrErr- FatalErr- UnsuppReq- AuxPwr+
TransPend-
LnkCap: Port #4, Speed 5GT/s, Width x1, ASPM L0s L1, Exit
Latency L0s <512ns, L1 <16us
ClockPM- Surprise- LLActRep+ BwNot+
LnkCtl: ASPM Disabled; RCB 64 bytes Disabled- CommClk+
ExtSynch- ClockPM- AutWidDis- BWInt- AutBWInt-
LnkSta: Speed 2.5GT/s, Width x1, TrErr- Train- SlotClk+
DLActive+ BWMgmt+ ABWMgmt-
SltCap: AttnBtn- PwrCtrl- MRL- AttnInd- PwrInd- HotPlug-
Surprise-
Slot #3, PowerLimit 10.000W; Interlock- NoCompl+
SltCtl: Enable: AttnBtn- PwrFlt- MRL- PresDet- CmdCplt-
HPIrq- LinkChg-
Control: AttnInd Unknown, PwrInd Unknown, Power- Interlock-
SltSta: Status: AttnBtn- PowerFlt- MRL- CmdCplt- PresDet+
Interlock-
Changed: MRL- PresDet- LinkState-
RootCtl: ErrCorrectable- ErrNon-Fatal- ErrFatal- PMEIntEna-
CRSVisible-
RootCap: CRSVisible-
RootSta: PME ReqID 0000, PMEStatus- PMEPending-
DevCap2: Completion Timeout: Range ABC, TimeoutDis+, LTR+, OBFF
Not Supported ARIFwd-
DevCtl2: Completion Timeout: 50us to 50ms, TimeoutDis-, LTR+,
OBFF Disabled ARIFwd-
LnkCtl2: Target Link Speed: 5GT/s, EnterCompliance- SpeedDis-
Transmit Margin: Normal Operating Range,
EnterModifiedCompliance- ComplianceSOS-
Compliance De-emphasis: -6dB
LnkSta2: Current De-emphasis Level: -3.5dB,
EqualizationComplete-, EqualizationPhase1-
EqualizationPhase2-, EqualizationPhase3-,
LinkEqualizationRequest-
Capabilities: [80] MSI: Enable- Count=1/1 Maskable- 64bit-
Address: 00000000 Data: 0000
Capabilities: [90] Subsystem: ASUSTeK Computer Inc. Device 13fd
Capabilities: [a0] Power Management version 3
Flags: PMEClk- DSI- D1- D2- AuxCurrent=0mA
PME(D0+,D1-,D2-,D3hot+,D3cold+)
Status: D0 NoSoftRst- PME-Enable- DSel=0 DScale=0 PME-
Capabilities: [100 v0] #00
Capabilities: [200 v1] L1 PM Substates
L1SubCap: PCI-PM_L1.2+ PCI-PM_L1.1+ ASPM_L1.2+ ASPM_L1.1+
L1_PM_Substates+
PortCommonModeRestoreTime=40us PortTPowerOnTime=10us
Kernel driver in use: pcieport
Kernel modules: shpchp

00:1c.4 PCI bridge: Intel Corporation 8 Series PCI Express Root Port 5 (rev e4) (prog-if 00 [Normal decode])
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr-
Stepping- SERR- FastB2B- DisINTx-
Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort-
<TAbort- <MAbort- >SERR- <PERR- INTx-

    Latency: 0, Cache Line Size: 64 bytes
    Bus: primary=00, secondary=04, subordinate=04, sec-latency=0
    I/O behind bridge: 0000d000-0000dfff
    Memory behind bridge: f6000000-f70fffff
    Prefetchable memory behind bridge: 00000000e0000000-00000000f1ffffff
    Secondary status: 66MHz- FastB2B- ParErr- DEVSEL=fast >TAbort- 

<TAbort- <MAbort+ <SERR- <PERR-
BridgeCtl: Parity- SERR- NoISA- VGA- MAbort- >Reset- FastB2B-
PriDiscTmr- SecDiscTmr- DiscTmrStat- DiscTmrSERREn-
Capabilities: [40] Express (v2) Root Port (Slot+), MSI 00
DevCap: MaxPayload 128 bytes, PhantFunc 0
ExtTag- RBE+
DevCtl: Report errors: Correctable- Non-Fatal- Fatal-
Unsupported-
RlxdOrd- ExtTag- PhantFunc- AuxPwr- NoSnoop- MaxPayload 128 bytes, MaxReadReq 128 bytes
DevSta: CorrErr- UncorrErr- FatalErr- UnsuppReq- AuxPwr+
TransPend-
LnkCap: Port #5, Speed 5GT/s, Width x4, ASPM L0s L1, Exit
Latency L0s <512ns, L1 <16us
ClockPM- Surprise- LLActRep+ BwNot+
LnkCtl: ASPM Disabled; RCB 64 bytes Disabled- CommClk+
ExtSynch- ClockPM- AutWidDis- BWInt- AutBWInt-
LnkSta: Speed 2.5GT/s, Width x4, TrErr- Train- SlotClk+
DLActive+ BWMgmt- ABWMgmt-
SltCap: AttnBtn- PwrCtrl- MRL- AttnInd- PwrInd- HotPlug-
Surprise-
Slot #4, PowerLimit 25.000W; Interlock- NoCompl+
SltCtl: Enable: AttnBtn- PwrFlt- MRL- PresDet- CmdCplt-
HPIrq- LinkChg-
Control: AttnInd Unknown, PwrInd Unknown, Power- Interlock-
SltSta: Status: AttnBtn- PowerFlt- MRL- CmdCplt- PresDet+
Interlock-
Changed: MRL- PresDet+ LinkState+
RootCtl: ErrCorrectable- ErrNon-Fatal- ErrFatal- PMEIntEna-
CRSVisible-
RootCap: CRSVisible-
RootSta: PME ReqID 0000, PMEStatus- PMEPending-
DevCap2: Completion Timeout: Range ABC, TimeoutDis+, LTR+, OBFF
Not Supported ARIFwd-
DevCtl2: Completion Timeout: 50us to 50ms, TimeoutDis-, LTR-,
OBFF Disabled ARIFwd-
LnkCtl2: Target Link Speed: 5GT/s, EnterCompliance- SpeedDis-
Transmit Margin: Normal Operating Range,
EnterModifiedCompliance- ComplianceSOS-
Compliance De-emphasis: -6dB
LnkSta2: Current De-emphasis Level: -3.5dB,
EqualizationComplete-, EqualizationPhase1-
EqualizationPhase2-, EqualizationPhase3-,
LinkEqualizationRequest-
Capabilities: [80] MSI: Enable- Count=1/1 Maskable- 64bit-
Address: 00000000 Data: 0000
Capabilities: [90] Subsystem: ASUSTeK Computer Inc. Device 13fd
Capabilities: [a0] Power Management version 3
Flags: PMEClk- DSI- D1- D2- AuxCurrent=0mA
PME(D0+,D1-,D2-,D3hot+,D3cold+)
Status: D0 NoSoftRst- PME-Enable- DSel=0 DScale=0 PME-
Capabilities: [100 v0] #00
Capabilities: [200 v1] L1 PM Substates
L1SubCap: PCI-PM_L1.2+ PCI-PM_L1.1+ ASPM_L1.2+ ASPM_L1.1+
L1_PM_Substates+
PortCommonModeRestoreTime=40us PortTPowerOnTime=10us
Kernel driver in use: pcieport
Kernel modules: shpchp

00:1d.0 USB controller: Intel Corporation 8 Series USB EHCI #1 (rev 04) (prog-if 20 [EHCI])
Subsystem: ASUSTeK Computer Inc. Device 13fd
Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr-
Stepping- SERR- FastB2B- DisINTx-
Status: Cap+ 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort-
<TAbort- <MAbort- >SERR- <PERR- INTx-
Latency: 0
Interrupt: pin A routed to IRQ 23
Region 0: Memory at f7a1b000 (32-bit, non-prefetchable) [size=1K]
Capabilities: [50] Power Management version 3
Flags: PMEClk- DSI- D1- D2- AuxCurrent=375mA
PME(D0+,D1-,D2-,D3hot+,D3cold+)
Status: D0 NoSoftRst+ PME-Enable- DSel=0 DScale=0 PME-
Capabilities: [58] Debug port: BAR=1 offset=00a0
Capabilities: [98] PCI Advanced Features
AFCap: TP+ FLR+
AFCtrl: FLR-
AFStatus: TP-
Kernel driver in use: ehci-pci

00:1f.0 ISA bridge: Intel Corporation 8 Series LPC Controller (rev 04)
Subsystem: ASUSTeK Computer Inc. Device 13fd
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr-
Stepping- SERR- FastB2B- DisINTx-
Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=medium >TAbort-
<TAbort- <MAbort- >SERR- <PERR- INTx-
Latency: 0
Capabilities: [e0] Vendor Specific Information: Len=0c <?> Kernel driver in use: lpc_ich
Kernel modules: lpc_ich

00:1f.2 SATA controller: Intel Corporation 8 Series SATA Controller 1 [AHCI mode] (rev 04) (prog-if 01 [AHCI 1.0])
Subsystem: ASUSTeK Computer Inc. Device 13fd
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr-
Stepping- SERR- FastB2B- DisINTx+
Status: Cap+ 66MHz+ UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort-
<TAbort- <MAbort- >SERR- <PERR- INTx-

    Latency: 0
    Interrupt: pin B routed to IRQ 40
    Region 0: I/O ports at f0b0 [size=8]
    Region 1: I/O ports at f0a0 [size=4]
    Region 2: I/O ports at f090 [size=8]
    Region 3: I/O ports at f080 [size=4]
    Region 4: I/O ports at f060 [size=32]
    Region 5: Memory at f7a1a000 (32-bit, non-prefetchable) [size=2K]
    Capabilities: [80] MSI: Enable+ Count=1/1 Maskable- 64bit-
        Address: fee0100c  Data: 4191
    Capabilities: [70] Power Management version 3
        Flags: PMEClk- DSI- D1- D2- AuxCurrent=0mA 

PME(D0-,D1-,D2-,D3hot+,D3cold-)
Status: D0 NoSoftRst+ PME-Enable- DSel=0 DScale=0 PME-
Capabilities: [a8] SATA HBA v1.0 BAR4 Offset=00000004 Kernel driver in use: ahci

00:1f.3 SMBus: Intel Corporation 8 Series SMBus Controller (rev 04)
Subsystem: ASUSTeK Computer Inc. Device 13fd
Control: I/O+ Mem+ BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr-
Stepping- SERR- FastB2B- DisINTx-
Status: Cap- 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort-
<TAbort- <MAbort- >SERR- <PERR- INTx-
Interrupt: pin C routed to IRQ 18
Region 0: Memory at f7a19000 (64-bit, non-prefetchable) [size=256] Region 4: I/O ports at f040 [size=32]
Kernel modules: i2c_i801

02:00.0 Ethernet controller: Qualcomm Atheros QCA8171 Gigabit Ethernet (rev 10)
Subsystem: ASUSTeK Computer Inc. Device 200f
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr-
Stepping- SERR- FastB2B- DisINTx-
Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort-
<TAbort- <MAbort- >SERR- <PERR- INTx-
Latency: 0, Cache Line Size: 64 bytes
Interrupt: pin A routed to IRQ 47
Region 0: Memory at f7900000 (64-bit, non-prefetchable) [size=256K] Region 2: I/O ports at e000 [size=128]
Capabilities: [40] Power Management version 3
Flags: PMEClk- DSI- D1- D2- AuxCurrent=375mA
PME(D0+,D1+,D2+,D3hot+,D3cold+)
Status: D0 NoSoftRst+ PME-Enable- DSel=0 DScale=0 PME-
Capabilities: [58] Express (v1) Endpoint, MSI 00
DevCap: MaxPayload 4096 bytes, PhantFunc 0, Latency L0s
unlimited, L1 unlimited
ExtTag- AttnBtn+ AttnInd+ PwrInd+ RBE+ FLReset-
DevCtl: Report errors: Correctable+ Non-Fatal+ Fatal+
Unsupported+
RlxdOrd- ExtTag- PhantFunc- AuxPwr- NoSnoop- MaxPayload 128 bytes, MaxReadReq 512 bytes
DevSta: CorrErr- UncorrErr+ FatalErr- UnsuppReq+ AuxPwr+
TransPend-
LnkCap: Port #0, Speed 2.5GT/s, Width x1, ASPM L0s L1, Exit
Latency L0s unlimited, L1 unlimited
ClockPM+ Surprise- LLActRep- BwNot-
LnkCtl: ASPM Disabled; RCB 64 bytes Disabled- CommClk+
ExtSynch- ClockPM- AutWidDis- BWInt- AutBWInt-
LnkSta: Speed 2.5GT/s, Width x1, TrErr- Train- SlotClk+
DLActive- BWMgmt- ABWMgmt-

    Capabilities: [c0] MSI: Enable+ Count=1/16 Maskable+ 64bit+
        Address: 00000000fee0f00c  Data: 4162
        Masking: 0000fffe  Pending: 00000000
    Capabilities: [d8] MSI-X: Enable- Count=16 Masked-
        Vector table: BAR=0 offset=00002000
        PBA: BAR=0 offset=00003000
    Capabilities: [100 v1] Advanced Error Reporting
        UESta:    DLP- SDES- TLP- FCP- CmpltTO- CmpltAbrt- UnxCmplt- 

RxOF- MalfTLP- ECRC- UnsupReq+ ACSViol-
UEMsk: DLP- SDES- TLP- FCP- CmpltTO- CmpltAbrt- UnxCmplt-
RxOF- MalfTLP- ECRC- UnsupReq- ACSViol-
UESvrt: DLP- SDES+ TLP- FCP- CmpltTO- CmpltAbrt- UnxCmplt-
RxOF+ MalfTLP+ ECRC- UnsupReq- ACSViol-
CESta: RxErr- BadTLP- BadDLLP- Rollover- Timeout- NonFatalErr-
CEMsk: RxErr- BadTLP- BadDLLP- Rollover- Timeout- NonFatalErr+
AERCap: First Error Pointer: 14, GenCap+ CGenEn- ChkCap+ ChkEn-
Capabilities: [180 v1] Device Serial Number ff-c1-f9-b8-10-c3-7b-ff Kernel driver in use: alx
Kernel modules: alx

03:00.0 Network controller: Ralink corp. RT3290 Wireless 802.11n 1T/1R PCIe
Subsystem: Foxconn International, Inc. Device e055
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr-
Stepping- SERR- FastB2B- DisINTx-
Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort-
<TAbort- <MAbort- >SERR- <PERR- INTx-
Latency: 0, Cache Line Size: 64 bytes
Interrupt: pin A routed to IRQ 19
Region 0: Memory at f7810000 (32-bit, non-prefetchable) [size=64K]
Capabilities: [40] Power Management version 3
Flags: PMEClk- DSI- D1- D2- AuxCurrent=375mA
PME(D0+,D1-,D2-,D3hot+,D3cold+)
Status: D0 NoSoftRst- PME-Enable- DSel=0 DScale=0 PME-
Capabilities: [50] MSI: Enable- Count=1/32 Maskable- 64bit+
Address: 0000000000000000 Data: 0000
Capabilities: [70] Express (v2) Endpoint, MSI 00
DevCap: MaxPayload 128 bytes, PhantFunc 0, Latency L0s
<128ns, L1 <2us
ExtTag- AttnBtn- AttnInd- PwrInd- RBE+ FLReset-
DevCtl: Report errors: Correctable- Non-Fatal- Fatal-
Unsupported-
RlxdOrd- ExtTag- PhantFunc- AuxPwr- NoSnoop- MaxPayload 128 bytes, MaxReadReq 512 bytes
DevSta: CorrErr+ UncorrErr- FatalErr- UnsuppReq+ AuxPwr+
TransPend-
LnkCap: Port #0, Speed 2.5GT/s, Width x1, ASPM L0s L1, Exit
Latency L0s <512ns, L1 <64us
ClockPM+ Surprise- LLActRep- BwNot-
LnkCtl: ASPM Disabled; RCB 64 bytes Disabled- CommClk+
ExtSynch- ClockPM- AutWidDis- BWInt- AutBWInt-
LnkSta: Speed 2.5GT/s, Width x1, TrErr- Train- SlotClk+
DLActive- BWMgmt- ABWMgmt-
DevCap2: Completion Timeout: Not Supported, TimeoutDis+, LTR-,
OBFF Not Supported
DevCtl2: Completion Timeout: 50us to 50ms, TimeoutDis-, LTR-,
OBFF Disabled
LnkCtl2: Target Link Speed: 2.5GT/s, EnterCompliance- SpeedDis-
Transmit Margin: Normal Operating Range,
EnterModifiedCompliance- ComplianceSOS-
Compliance De-emphasis: -6dB
LnkSta2: Current De-emphasis Level: -6dB,
EqualizationComplete-, EqualizationPhase1-
EqualizationPhase2-, EqualizationPhase3-,
LinkEqualizationRequest-
Capabilities: [100 v1] Advanced Error Reporting
UESta: DLP- SDES- TLP- FCP- CmpltTO- CmpltAbrt- UnxCmplt-
RxOF- MalfTLP- ECRC- UnsupReq- ACSViol-
UEMsk: DLP- SDES- TLP- FCP- CmpltTO- CmpltAbrt- UnxCmplt-
RxOF- MalfTLP- ECRC- UnsupReq- ACSViol-
UESvrt: DLP+ SDES+ TLP- FCP+ CmpltTO- CmpltAbrt- UnxCmplt-
RxOF+ MalfTLP+ ECRC- UnsupReq- ACSViol-
CESta: RxErr- BadTLP- BadDLLP- Rollover- Timeout- NonFatalErr+
CEMsk: RxErr- BadTLP- BadDLLP- Rollover- Timeout- NonFatalErr+
AERCap: First Error Pointer: 00, GenCap+ CGenEn- ChkCap+ ChkEn-
Capabilities: [140 v1] Device Serial Number 00-00-75-68-45-30-35-54 Kernel driver in use: rt2800pci
Kernel modules: rt2800pci

03:00.1 Bluetooth: Ralink corp. RT3290 Bluetooth
Subsystem: Foxconn International, Inc. Device e056
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr-
Stepping- SERR- FastB2B- DisINTx-
Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort-
<TAbort- <MAbort- >SERR- <PERR- INTx-
Latency: 0, Cache Line Size: 64 bytes
Interrupt: pin A routed to IRQ 10
Region 0: Memory at f7800000 (32-bit, non-prefetchable) [size=64K]
Capabilities: [40] Power Management version 3
Flags: PMEClk- DSI- D1+ D2- AuxCurrent=375mA
PME(D0+,D1+,D2-,D3hot+,D3cold+)
Status: D0 NoSoftRst- PME-Enable- DSel=0 DScale=0 PME-
Capabilities: [50] MSI: Enable- Count=1/32 Maskable- 64bit+
Address: 0000000000000000 Data: 0000
Capabilities: [70] Express (v2) Endpoint, MSI 00
DevCap: MaxPayload 128 bytes, PhantFunc 0, Latency L0s
<128ns, L1 <2us
ExtTag- AttnBtn- AttnInd- PwrInd- RBE+ FLReset-
DevCtl: Report errors: Correctable- Non-Fatal- Fatal-
Unsupported-
RlxdOrd- ExtTag- PhantFunc- AuxPwr- NoSnoop- MaxPayload 128 bytes, MaxReadReq 512 bytes
DevSta: CorrErr+ UncorrErr- FatalErr- UnsuppReq+ AuxPwr+
TransPend-
LnkCap: Port #0, Speed 2.5GT/s, Width x1, ASPM L0s L1, Exit
Latency L0s <512ns, L1 <64us
ClockPM+ Surprise- LLActRep- BwNot-
LnkCtl: ASPM Disabled; RCB 64 bytes Disabled- CommClk+
ExtSynch- ClockPM- AutWidDis- BWInt- AutBWInt-
LnkSta: Speed 2.5GT/s, Width x1, TrErr- Train- SlotClk+
DLActive- BWMgmt- ABWMgmt-
DevCap2: Completion Timeout: Not Supported, TimeoutDis+, LTR-,
OBFF Not Supported
DevCtl2: Completion Timeout: 50us to 50ms, TimeoutDis-, LTR-,
OBFF Disabled
LnkSta2: Current De-emphasis Level: -6dB,
EqualizationComplete-, EqualizationPhase1-
EqualizationPhase2-, EqualizationPhase3-,
LinkEqualizationRequest-
Capabilities: [100 v1] Advanced Error Reporting
UESta: DLP- SDES- TLP- FCP- CmpltTO- CmpltAbrt- UnxCmplt-
RxOF- MalfTLP- ECRC- UnsupReq- ACSViol-
UEMsk: DLP- SDES- TLP- FCP- CmpltTO- CmpltAbrt- UnxCmplt-
RxOF- MalfTLP- ECRC- UnsupReq- ACSViol-
UESvrt: DLP+ SDES+ TLP- FCP+ CmpltTO- CmpltAbrt- UnxCmplt-
RxOF+ MalfTLP+ ECRC- UnsupReq- ACSViol-
CESta: RxErr- BadTLP- BadDLLP- Rollover- Timeout- NonFatalErr+
CEMsk: RxErr- BadTLP- BadDLLP- Rollover- Timeout- NonFatalErr+
AERCap: First Error Pointer: 00, GenCap+ CGenEn- ChkCap+ ChkEn-
Capabilities: [140 v1] Device Serial Number 00-00-76-68-45-30-35-54

04:00.0 3D controller: NVIDIA Corporation GF117M [GeForce 610M/710M/820M / GT 620M/625M/630M/720M] (rev a1)
Subsystem: ASUSTeK Computer Inc. GeForce GT 720M
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr-
Stepping- SERR- FastB2B- DisINTx+
Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort-
<TAbort- <MAbort- >SERR- <PERR- INTx-

    Latency: 0, Cache Line Size: 64 bytes
    Interrupt: pin A routed to IRQ 43
    Region 0: Memory at f6000000 (32-bit, non-prefetchable) [size=16M]
    Region 1: Memory at e0000000 (64-bit, prefetchable) [size=256M]
    Region 3: Memory at f0000000 (64-bit, prefetchable) [size=32M]
    Region 5: I/O ports at d000 [size=128]
    Expansion ROM at f7000000 [disabled] [size=512K]
    Capabilities: [60] Power Management version 3
        Flags: PMEClk- DSI- D1- D2- AuxCurrent=0mA 

PME(D0-,D1-,D2-,D3hot-,D3cold-)
Status: D0 NoSoftRst+ PME-Enable- DSel=0 DScale=0 PME-
Capabilities: [68] MSI: Enable+ Count=1/1 Maskable- 64bit+
Address: 00000000fee0100c Data: 41d1
Capabilities: [78] Express (v2) Endpoint, MSI 00
DevCap: MaxPayload 256 bytes, PhantFunc 0, Latency L0s
unlimited, L1 <64us
ExtTag+ AttnBtn- AttnInd- PwrInd- RBE+ FLReset-
DevCtl: Report errors: Correctable- Non-Fatal- Fatal-
Unsupported-
RlxdOrd- ExtTag- PhantFunc- AuxPwr- NoSnoop+ MaxPayload 128 bytes, MaxReadReq 512 bytes
DevSta: CorrErr- UncorrErr- FatalErr- UnsuppReq- AuxPwr-
TransPend-
LnkCap: Port #0, Speed 2.5GT/s, Width x8, ASPM L0s L1, Exit
Latency L0s <512ns, L1 <4us
ClockPM+ Surprise- LLActRep- BwNot-
LnkCtl: ASPM Disabled; RCB 64 bytes Disabled- CommClk+
ExtSynch- ClockPM- AutWidDis- BWInt- AutBWInt-
LnkSta: Speed 2.5GT/s, Width x4, TrErr- Train- SlotClk+
DLActive- BWMgmt- ABWMgmt-
DevCap2: Completion Timeout: Range AB, TimeoutDis+, LTR-, OBFF
Not Supported
DevCtl2: Completion Timeout: 50us to 50ms, TimeoutDis-, LTR-,
OBFF Disabled
LnkCtl2: Target Link Speed: 2.5GT/s, EnterCompliance- SpeedDis-
Transmit Margin: Normal Operating Range,
EnterModifiedCompliance- ComplianceSOS-
Compliance De-emphasis: -6dB
LnkSta2: Current De-emphasis Level: -6dB,
EqualizationComplete-, EqualizationPhase1-
EqualizationPhase2-, EqualizationPhase3-,
LinkEqualizationRequest-
Capabilities: [b4] Vendor Specific Information: Len=14 <?>
Capabilities: [100 v1] Virtual Channel
Caps: LPEVC=0 RefClk=100ns PATEntryBits=1
Arb: Fixed- WRR32- WRR64- WRR128-
Ctrl: ArbSelect=Fixed
Status: InProgress-
VC0: Caps: PATOffset=00 MaxTimeSlots=1 RejSnoopTrans-
Arb: Fixed- WRR32- WRR64- WRR128- TWRR128- WRR256-
Ctrl: Enable+ ID=0 ArbSelect=Fixed TC/VC=01
Status: NegoPending- InProgress-
Capabilities: [128 v1] Power Budgeting <?>
Capabilities: [600 v1] Vendor Specific Information: ID=0001 Rev=1
Len=024 <?>
Kernel driver in use: nouveau
Kernel modules: nouveau

If you need more info please tell me.

Which one of them is present in /sys/bus/acpi/devices/?

Based on your lspci output you have LPSS disabled. For comparison here is a snippet from one development machine which is HSW-ULT:

...
00:15.1 Serial bus controller [0c80]: Intel Corporation Lynx Point-LP I2C Controller #0 (rev 03) 00:15.2 Serial bus controller [0c80]: Intel Corporation Lynx Point-LP I2C Controller #1 (rev 03)

Hi Mika,

First of all many thanks for your input on this.

No, that is a guess because the windows drivers for this touchpad can do both ps/2 and i2c-hid, and we're sort of hoping that i2c-hid is attached, so that we don't need to reverse-engineer a new ps/2 protocol.

But it looks like we are out of luck there, and we really need to figure out the ps/2 protocol.

FOLT probably stands for Focaltech, and I bet this is the one which will show up in /sys/bus/acpi/devices/

If it does show up, is there any way to see how it is supposed to be connected ?

Regards,

Hans

Well, given that the device name is PS2M I would expect it to be connected via serio using PS/2 protocol.

Another info,

When I removed Windows, I did a mistake removing the EFI partition. I didn't boot my Fedora. After that, I created a new EFI partition with Anaconda. Maybe this can related to the problem?