search

YongBinnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnn / cured_live_dvd

Other
0 stars 0 forks source link

find ways to disable some pci device #20

Open YongBinnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnn opened 3 weeks ago

YongBinnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnn commented 3 weeks ago

setpci stopped working due to lockdown

YongBinnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnn commented 3 weeks ago

pci devices of my mechrevo, could have something strange 

00:00.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Device 14e8
    Subsystem: Tongfang Hongkong Limited Device 137d
    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-

00:00.2 IOMMU: Advanced Micro Devices, Inc. [AMD] Device 14e9
    Subsystem: Tongfang Hongkong Limited Device 137d
    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 16
    Capabilities: <access denied>

00:01.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Device 14ea
    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-
    IOMMU group: 0

00:02.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Device 14ea
    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-
    IOMMU group: 1

00:03.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Device 14ea
    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-
    IOMMU group: 2

00:04.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Device 14ea
    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-
    IOMMU group: 3

00:08.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Device 14ea
    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-
    IOMMU group: 4

00:08.1 PCI bridge: Advanced Micro Devices, Inc. [AMD] Device 14eb (prog-if 00 [Normal decode])
    Subsystem: Tongfang Hongkong Limited Device 137d
    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
    IOMMU group: 5
    Bus: primary=00, secondary=01, subordinate=01, sec-latency=0
    I/O behind bridge: f000-ffff [size=4K] [16-bit]
    Memory behind bridge: fc600000-fcbfffff [size=6M] [32-bit]
    Prefetchable memory behind bridge: 7fe0000000-7ff07fffff [size=264M] [32-bit]
    Secondary status: 66MHz- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- <SERR- <PERR-
    BridgeCtl: Parity- SERR+ NoISA- VGA- VGA16+ MAbort- >Reset- FastB2B-
        PriDiscTmr- SecDiscTmr- DiscTmrStat- DiscTmrSERREn-
    Capabilities: <access denied>
    Kernel driver in use: pcieport

00:08.2 PCI bridge: Advanced Micro Devices, Inc. [AMD] Device 14eb (prog-if 00 [Normal decode])
    Subsystem: Tongfang Hongkong Limited Device 137d
    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 20
    IOMMU group: 6
    Bus: primary=00, secondary=02, subordinate=02, sec-latency=0
    I/O behind bridge: [disabled] [32-bit]
    Memory behind bridge: fce00000-fcefffff [size=1M] [32-bit]
    Prefetchable memory behind bridge: 7ff0900000-7ff09fffff [size=1M] [32-bit]
    Secondary status: 66MHz- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- <SERR- <PERR-
    BridgeCtl: Parity- SERR+ NoISA- VGA- VGA16+ MAbort- >Reset- FastB2B-
        PriDiscTmr- SecDiscTmr- DiscTmrStat- DiscTmrSERREn-
    Capabilities: <access denied>
    Kernel driver in use: pcieport

00:08.3 PCI bridge: Advanced Micro Devices, Inc. [AMD] Device 14eb (prog-if 00 [Normal decode])
pcilib: Error reading /sys/bus/pci/devices/0000:00:08.3/label: Operation not permitted
    Subsystem: Tongfang Hongkong Limited Device 137d
    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 21
    IOMMU group: 7
    Bus: primary=00, secondary=03, subordinate=03, sec-latency=0
    I/O behind bridge: [disabled] [32-bit]
    Memory behind bridge: fcc00000-fcdfffff [size=2M] [32-bit]
    Prefetchable memory behind bridge: [disabled] [64-bit]
    Secondary status: 66MHz- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- <SERR- <PERR-
    BridgeCtl: Parity- SERR+ NoISA- VGA- VGA16+ MAbort- >Reset- FastB2B-
        PriDiscTmr- SecDiscTmr- DiscTmrStat- DiscTmrSERREn-
    Capabilities: <access denied>
    Kernel driver in use: pcieport

00:14.0 SMBus: Advanced Micro Devices, Inc. [AMD] FCH SMBus Controller (rev 71)
    Subsystem: Tongfang Hongkong Limited FCH SMBus Controller
    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-
    IOMMU group: 8
    Kernel modules: i2c_piix4, sp5100_tco

00:14.3 ISA bridge: Advanced Micro Devices, Inc. [AMD] FCH LPC Bridge (rev 51)
    Subsystem: Tongfang Hongkong Limited FCH LPC Bridge
    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
    IOMMU group: 8

00:18.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Device 14f0
    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-
    IOMMU group: 9

00:18.1 Host bridge: Advanced Micro Devices, Inc. [AMD] Device 14f1
    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-
    IOMMU group: 9

00:18.2 Host bridge: Advanced Micro Devices, Inc. [AMD] Device 14f2
    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-
    IOMMU group: 9

00:18.3 Host bridge: Advanced Micro Devices, Inc. [AMD] Device 14f3
    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-
    IOMMU group: 9
    Kernel modules: k10temp

00:18.4 Host bridge: Advanced Micro Devices, Inc. [AMD] Device 14f4
    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-
    IOMMU group: 9

00:18.5 Host bridge: Advanced Micro Devices, Inc. [AMD] Device 14f5
    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-
    IOMMU group: 9

00:18.6 Host bridge: Advanced Micro Devices, Inc. [AMD] Device 14f6
    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-
    IOMMU group: 9

00:18.7 Host bridge: Advanced Micro Devices, Inc. [AMD] Device 14f7
    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-
    IOMMU group: 9

01:00.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] Phoenix3 (rev c5) (prog-if 00 [VGA controller])
    Subsystem: Tongfang Hongkong Limited Phoenix3
    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 11
    IOMMU group: 10
    Region 0: Memory at 7fe0000000 (64-bit, prefetchable) [size=256M]
    Region 2: Memory at fc600000 (64-bit, prefetchable) [size=2M]
    Region 4: I/O ports at f000 [size=256]
    Region 5: Memory at fcb00000 (32-bit, non-prefetchable) [size=512K]
    Capabilities: <access denied>
    Kernel driver in use: amdgpu
    Kernel modules: amdgpu

01:00.2 Encryption controller: Advanced Micro Devices, Inc. [AMD] Family 19h (Model 74h) CCP/PSP 3.0 Device
    Subsystem: Tongfang Hongkong Limited Family 19h (Model 74h) CCP/PSP 3.0 Device
    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 C routed to IRQ 11
    IOMMU group: 11
    Region 2: Memory at fca00000 (32-bit, non-prefetchable) [size=1M]
    Region 5: Memory at fcbc8000 (32-bit, non-prefetchable) [size=8K]
    Capabilities: <access denied>
    Kernel driver in use: ccp
    Kernel modules: ccp

01:00.3 USB controller: Advanced Micro Devices, Inc. [AMD] Device 15b9 (prog-if 30 [XHCI])
    Subsystem: Tongfang Hongkong Limited Device 137d
    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 D routed to IRQ 23
    IOMMU group: 12
    Region 0: Memory at fc900000 (64-bit, non-prefetchable) [size=1M]
    Capabilities: <access denied>
    Kernel driver in use: xhci_hcd
    Kernel modules: xhci_pci

01:00.4 USB controller: Advanced Micro Devices, Inc. [AMD] Device 15ba (prog-if 30 [XHCI])
    Subsystem: Tongfang Hongkong Limited Device 137d
    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 24
    IOMMU group: 13
    Region 0: Memory at fc800000 (64-bit, non-prefetchable) [size=1M]
    Capabilities: <access denied>
    Kernel driver in use: xhci_hcd
    Kernel modules: xhci_pci

01:00.5 Multimedia controller: Advanced Micro Devices, Inc. [AMD] ACP/ACP3X/ACP6x Audio Coprocessor (rev 63)
    Subsystem: Tongfang Hongkong Limited ACP/ACP3X/ACP6x Audio Coprocessor
    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-
    Interrupt: pin B routed to IRQ 255
    IOMMU group: 14
    Region 0: Memory at fcb80000 (32-bit, non-prefetchable) [disabled] [size=256K]
    Region 2: Memory at 7ff0000000 (64-bit, prefetchable) [disabled] [size=8M]
    Capabilities: <access denied>
    Kernel modules: snd_pci_acp3x, snd_rn_pci_acp3x, snd_pci_acp5x, snd_pci_acp6x

01:00.6 Audio device: Advanced Micro Devices, Inc. [AMD] Family 17h/19h HD Audio Controller
    DeviceName: Realtek ALC256
    Subsystem: Tongfang Hongkong Limited Family 17h/19h HD Audio Controller
    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 C routed to IRQ 30
    IOMMU group: 15
    Region 0: Memory at fcbc0000 (32-bit, non-prefetchable) [size=32K]
    Capabilities: <access denied>
    Kernel driver in use: snd_hda_intel
    Kernel modules: snd_hda_intel

02:00.0 Non-Essential Instrumentation [1300]: Advanced Micro Devices, Inc. [AMD] Device 14ec
    Subsystem: Tongfang Hongkong Limited Device 137d
    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-
    IOMMU group: 16
    Capabilities: <access denied>

02:00.1 Signal processing controller: Advanced Micro Devices, Inc. [AMD] AMD IPU Device
    Subsystem: Tongfang Hongkong Limited AMD IPU Device
    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-
    Interrupt: pin A routed to IRQ 255
    IOMMU group: 17
    Region 0: Memory at fce00000 (32-bit, non-prefetchable) [disabled] [size=512K]
    Region 1: Memory at fcec0000 (32-bit, non-prefetchable) [disabled] [size=8K]
    Region 2: Memory at 7ff0900000 (64-bit, prefetchable) [disabled] [size=256K]
    Region 4: Memory at fce80000 (32-bit, non-prefetchable) [disabled] [size=256K]
    Capabilities: <access denied>

03:00.0 Non-Essential Instrumentation [1300]: Advanced Micro Devices, Inc. [AMD] Device 14ec
    Subsystem: Tongfang Hongkong Limited Device 137d
    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-
    IOMMU group: 18
    Capabilities: <access denied>

03:00.3 USB controller: Advanced Micro Devices, Inc. [AMD] Device 15c0 (prog-if 30 [XHCI])
    Subsystem: Tongfang Hongkong Limited Device 137d
    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 25
    IOMMU group: 19
    Region 0: Memory at fcd00000 (64-bit, non-prefetchable) [size=1M]
    Capabilities: <access denied>
    Kernel driver in use: xhci_hcd
    Kernel modules: xhci_pci

03:00.4 USB controller: Advanced Micro Devices, Inc. [AMD] Device 15c1 (prog-if 30 [XHCI])
    Subsystem: Tongfang Hongkong Limited Device 137d
    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 B routed to IRQ 26
    IOMMU group: 20
    Region 0: Memory at fcc00000 (64-bit, non-prefetchable) [size=1M]
    Capabilities: <access denied>
    Kernel driver in use: xhci_hcd
    Kernel modules: xhci_pci
YongBinnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnn commented 3 weeks ago

after

echo "0000:00:08.3"|sudo tee /sys/bus/pci/drivers/pcieport/unbind

the result of

lsusb -v 2>/dev/null | grep '^Bus\|iSerial'

sill show those usb controllers

YongBinnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnn commented 3 weeks ago

echo "1022 15c1"|sudo tee /sys/bus/pci/drivers/xhci_hcd/remove_id

1022 15c1

tee: /sys/bus/pci/drivers/xhci_hcd/remove_id: No such device

YongBinnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnn commented 3 weeks ago

echo "0000:03:00.3"|sudo tee /sys/bus/pci/drivers/xhci_hcd/unbind

works

YongBinnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnn commented 3 weeks ago

easier command to check drivers:

lspci -nnkvv|grep -e "0\.. " -e use

YongBinnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnn commented 3 weeks ago

rc.local is late, better to find an earlier chance to disable it

YongBinnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnn commented 3 weeks ago

ai answer :

Modify the Module Initialization Function In the Linux kernel module's initialization function (usually the function marked with module_init), you can add conditional checks to prevent the initialization of specific devices. For example, if your module is a device driver that manages multiple USB devices, and you want to skip the initialization of a particular type of USB device, you can check the USB device's vendor ID and product ID. Here's a simple example in C for a USB device driver module: Replace YOUR_VENDOR_ID and YOUR_PRODUCT_ID with the actual vendor and product IDs of the device you want to skip. Use Device Tree or ACPI Information (for Platform - specific Devices) If your module is dealing with platform - specific devices (such as in embedded systems), you can use Device Tree (DT) or Advanced Configuration and Power Interface (ACPI) information. For Device Tree: You can check the device - tree nodes to see if a device should be initialized. In the module's probe function (the function that gets called when a potential device match is found), you can use functions like of_device_is_compatible to check the device's compatibility string in the Device Tree. For example: For ACPI: Similar to Device Tree, you can use ACPI information to determine if a device should be initialized. The ACPI subsystem provides functions to traverse the ACPI namespace and find objects related to devices. You can look for specific ACPI device IDs or signatures that match the devices you want to initialize. For example, an ACPI - based driver might use functions like acpi_bus_get_device and acpi_match_device to identify and claim a device. You can add conditional checks in the match function to skip certain devices.