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我想找到安装了另一个设备的设备的 idproduct、idvendor 和序列号,因为我将编写 udev 规则。
lspci -nn
00:01.0 PCI bridge [0604]: NVIDIA Corporation Device [10de:10e5] (rev a1)
00:03.0 PCI bridge [0604]: NVIDIA Corporation Device [10de:10e6] (rev a1)
01:00.0 PCI bridge [0604]: Pericom Semiconductor PI7C9X111SL PCIe-to-PCI Reversible Bridge [12d8:e111] (rev 02)
02:04.0 Multimedia video controller [0400]: Intersil Techwell TW6816 multimedia video controller [1797:6810] (rev 10)
02:04.1 Multimedia video controller [0400]: Intersil Techwell TW6816 multimedia video controller [1797:6811] (rev 10)
02:04.2 Multimedia video controller [0400]: Intersil Techwell TW6816 multimedia video controller [1797:6812] (rev 10)
02:04.3 Multimedia video controller [0400]: Intersil Techwell TW6816 multimedia video controller [1797:6813] (rev 10)
02:04.4 Multimedia controller [0480]: Intersil Techwell TW6816 multimedia video controller [1797:6814] (rev 10)
02:04.5 Multimedia controller [0480]: Intersil Techwell TW6816 multimedia video controller [1797:6815] (rev 10)
02:04.6 Multimedia controller [0480]: Intersil Techwell TW6816 multimedia video controller [1797:6816] (rev 10)
02:04.7 Multimedia controller [0480]: Intersil Techwell TW6816 multimedia video controller [1797:6817] (rev 10)
02:05.0 Multimedia video controller [0400]: Intersil Techwell TW6816 multimedia video controller [1797:6810] (rev 10)
02:05.1 Multimedia video controller [0400]: Intersil Techwell TW6816 multimedia video controller [1797:6811] (rev 10)
02:05.2 Multimedia video controller [0400]: Intersil Techwell TW6816 multimedia video controller [1797:6812] (rev 10)
02:05.3 Multimedia video controller [0400]: Intersil Techwell TW6816 multimedia video controller [1797:6813] (rev 10)
02:05.4 Multimedia controller [0480]: Intersil Techwell TW6816 multimedia video controller [1797:6814] (rev 10)
02:05.5 Multimedia controller [0480]: Intersil Techwell TW6816 multimedia video controller [1797:6815] (rev 10)
02:05.6 Multimedia controller [0480]: Intersil Techwell TW6816 multimedia video controller [1797:6816] (rev 10)
02:05.7 Multimedia controller [0480]: Intersil Techwell TW6816 multimedia video controller [1797:6817] (rev 10)
03:00.0 Unassigned class [ff00]: Device [1af2:a001]
和
udevadm info -q all -a -n /dev/video3
Udevadm info starts with the device specified by the devpath and then
walks up the chain of parent devices. It prints for every device
found, all possible attributes in the udev rules key format.
A rule to match, can be composed by the attributes of the device
and the attributes from one single parent device.
looking at device '/devices/10003000.pcie-controller/pci0000:00/0000:00:03.0/0000:03:00.0/video4linux/video3':
KERNEL=="video3"
SUBSYSTEM=="video4linux"
DRIVER==""
ATTR{dev_debug}=="0"
ATTR{index}=="0"
ATTR{name}=="SDL H.264 Codec (V4L)"
looking at parent device '/devices/10003000.pcie-controller/pci0000:00/0000:00:03.0/0000:03:00.0':
KERNELS=="0000:03:00.0"
SUBSYSTEMS=="pci"
DRIVERS=="c353"
ATTRS{broken_parity_status}=="0"
ATTRS{class}=="0xff0000"
ATTRS{consistent_dma_mask_bits}=="32"
ATTRS{device}=="0xa001"
ATTRS{devspec}==""
ATTRS{dma_mask_bits}=="32"
ATTRS{driver_override}=="(null)"
ATTRS{enable}=="1"
ATTRS{irq}=="388"
ATTRS{local_cpulist}=="0-5"
ATTRS{local_cpus}=="3f"
ATTRS{msi_bus}=="1"
ATTRS{subsystem_device}=="0xa001"
ATTRS{subsystem_vendor}=="0x1af2"
ATTRS{vendor}=="0x1af2"
looking at parent device '/devices/10003000.pcie-controller/pci0000:00/0000:00:03.0':
KERNELS=="0000:00:03.0"
SUBSYSTEMS=="pci"
DRIVERS=="pcieport"
ATTRS{broken_parity_status}=="0"
ATTRS{class}=="0x060400"
ATTRS{consistent_dma_mask_bits}=="32"
ATTRS{device}=="0x10e6"
ATTRS{dma_mask_bits}=="32"
ATTRS{driver_override}=="(null)"
ATTRS{enable}=="1"
ATTRS{irq}=="388"
ATTRS{local_cpulist}=="0-5"
ATTRS{local_cpus}=="3f"
ATTRS{msi_bus}=="1"
ATTRS{subsystem_device}=="0x0000"
ATTRS{subsystem_vendor}=="0x10de"
ATTRS{vendor}=="0x10de"
looking at parent device '/devices/10003000.pcie-controller/pci0000:00':
KERNELS=="pci0000:00"
SUBSYSTEMS==""
DRIVERS==""
looking at parent device '/devices/10003000.pcie-controller':
KERNELS=="10003000.pcie-controller"
SUBSYSTEMS=="platform"
DRIVERS=="tegra-pcie"
ATTRS{driver_override}=="(null)"