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问每次重新启动后相同的USB声卡的设备名称
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Unix & Linux用户

提问于 2019-07-31 10:03:02

回答 1查看 1.4K关注 0票数 3

我想使用Debian 10、Darkice和Icecast构建一个流服务器，它可以流两个实时录制的频道。

声卡是两个贝林格UCA202总是插入同一物理USB端口的机器。假设一个是上USB端口，另一个是下USB端口.

当与-l检查时，其中一个声卡被命名为CODEC，另一个是CODEC_1。您可以在Darkice的配置文件中输入相应的通道，并为Icecast分配一个挂载点。

因此，目前我们有以下配置：

上层USB ->名称中的卡是Icecast中的编解码器->挂载stream1。

低USB ->名称中的卡是Icecast中的CODEC_1 ->挂载点stream2。

问题是，在重新启动之后，由于设备发现的性质，声卡有时可以切换它们的名称。编解码器变成CODEC_1，反之亦然。在这种情况下，挂载点上的流也发生了切换，stream1来自错误的声卡。

现在，我如何分配相同的名称，每次，以便编解码器始终是声卡上的上层USB端口？可能是某种udev规则？

根据要求，我添加了udevadm的输出-ap /sys/

下面是udevadm信息的输出-ap /sys/class/声/controlC0 C0

  looking at device '/devices/pci0000:00/0000:00:1a.1/usb3/3-2/3-2:1.0/sound/card0/controlC0':
    KERNEL=="controlC0"
    SUBSYSTEM=="sound"
    DRIVER==""

  looking at parent device '/devices/pci0000:00/0000:00:1a.1/usb3/3-2/3-2:1.0/sound/card0':
    KERNELS=="card0"
    SUBSYSTEMS=="sound"
    DRIVERS==""
    ATTRS{id}=="CODEC_1"
    ATTRS{number}=="0"

  looking at parent device '/devices/pci0000:00/0000:00:1a.1/usb3/3-2/3-2:1.0':
    KERNELS=="3-2:1.0"
    SUBSYSTEMS=="usb"
    DRIVERS=="snd-usb-audio"
    ATTRS{bInterfaceClass}=="01"
    ATTRS{bInterfaceNumber}=="00"
    ATTRS{bNumEndpoints}=="00"
    ATTRS{bInterfaceSubClass}=="01"
    ATTRS{supports_autosuspend}=="1"
    ATTRS{bAlternateSetting}==" 0"
    ATTRS{bInterfaceProtocol}=="00"
    ATTRS{authorized}=="1"

  looking at parent device '/devices/pci0000:00/0000:00:1a.1/usb3/3-2':
    KERNELS=="3-2"
    SUBSYSTEMS=="usb"
    DRIVERS=="usb"
    ATTRS{bMaxPacketSize0}=="8"
    ATTRS{busnum}=="3"
    ATTRS{rx_lanes}=="1"
    ATTRS{bDeviceProtocol}=="00"
    ATTRS{devpath}=="2"
    ATTRS{bMaxPower}=="100mA"
    ATTRS{maxchild}=="0"
    ATTRS{configuration}==""
    ATTRS{tx_lanes}=="1"
    ATTRS{bcdDevice}=="0100"
    ATTRS{product}=="USB Audio CODEC "
    ATTRS{bDeviceSubClass}=="00"
    ATTRS{speed}=="12"
    ATTRS{idVendor}=="08bb"
    ATTRS{bmAttributes}=="80"
    ATTRS{devnum}=="3"
    ATTRS{authorized}=="1"
    ATTRS{bNumConfigurations}=="1"
    ATTRS{bConfigurationValue}=="1"
    ATTRS{ltm_capable}=="no"
    ATTRS{idProduct}=="2902"
    ATTRS{version}==" 1.10"
    ATTRS{bDeviceClass}=="00"
    ATTRS{bNumInterfaces}==" 4"
    ATTRS{quirks}=="0x0"
    ATTRS{removable}=="unknown"
    ATTRS{avoid_reset_quirk}=="0"
    ATTRS{manufacturer}=="Burr-Brown from TI              "
    ATTRS{urbnum}=="1331512"

  looking at parent device '/devices/pci0000:00/0000:00:1a.1/usb3':
    KERNELS=="usb3"
    SUBSYSTEMS=="usb"
    DRIVERS=="usb"
    ATTRS{serial}=="0000:00:1a.1"
    ATTRS{urbnum}=="89"
    ATTRS{idProduct}=="0001"
    ATTRS{bMaxPacketSize0}=="64"
    ATTRS{avoid_reset_quirk}=="0"
    ATTRS{configuration}==""
    ATTRS{busnum}=="3"
    ATTRS{devnum}=="1"
    ATTRS{interface_authorized_default}=="1"
    ATTRS{rx_lanes}=="1"
    ATTRS{devpath}=="0"
    ATTRS{speed}=="12"
    ATTRS{bmAttributes}=="e0"
    ATTRS{bDeviceClass}=="09"
    ATTRS{removable}=="unknown"
    ATTRS{product}=="UHCI Host Controller"
    ATTRS{version}==" 1.10"
    ATTRS{bcdDevice}=="0419"
    ATTRS{authorized_default}=="1"
    ATTRS{authorized}=="1"
    ATTRS{tx_lanes}=="1"
    ATTRS{bDeviceSubClass}=="00"
    ATTRS{bNumConfigurations}=="1"
    ATTRS{bDeviceProtocol}=="00"
    ATTRS{bConfigurationValue}=="1"
    ATTRS{ltm_capable}=="no"
    ATTRS{idVendor}=="1d6b"
    ATTRS{bNumInterfaces}==" 1"
    ATTRS{maxchild}=="2"
    ATTRS{quirks}=="0x0"
    ATTRS{manufacturer}=="Linux 4.19.0-5-amd64 uhci_hcd"
    ATTRS{bMaxPower}=="0mA"

  looking at parent device '/devices/pci0000:00/0000:00:1a.1':
    KERNELS=="0000:00:1a.1"
    SUBSYSTEMS=="pci"
    DRIVERS=="uhci_hcd"
    ATTRS{ari_enabled}=="0"
    ATTRS{driver_override}=="(null)"
    ATTRS{d3cold_allowed}=="0"
    ATTRS{device}=="0x2835"
    ATTRS{msi_bus}=="1"
    ATTRS{subsystem_device}=="0x2808"
    ATTRS{broken_parity_status}=="0"
    ATTRS{local_cpulist}=="0-1"
    ATTRS{irq}=="21"
    ATTRS{subsystem_vendor}=="0x103c"
    ATTRS{class}=="0x0c0300"
    ATTRS{numa_node}=="-1"
    ATTRS{dma_mask_bits}=="32"
    ATTRS{consistent_dma_mask_bits}=="32"
    ATTRS{vendor}=="0x8086"
    ATTRS{revision}=="0x02"
    ATTRS{enable}=="1"
    ATTRS{local_cpus}=="3"

  looking at parent device '/devices/pci0000:00':
    KERNELS=="pci0000:00"
    SUBSYSTEMS==""
    DRIVERS==""

这是udevadm信息的输出-ap /sys/class/声/controlC1 1

  looking at device '/devices/pci0000:00/0000:00:1a.1/usb3/3-1/3-1:1.0/sound/card1/controlC1':
    KERNEL=="controlC1"
    SUBSYSTEM=="sound"
    DRIVER==""

  looking at parent device '/devices/pci0000:00/0000:00:1a.1/usb3/3-1/3-1:1.0/sound/card1':
    KERNELS=="card1"
    SUBSYSTEMS=="sound"
    DRIVERS==""
    ATTRS{id}=="CODEC"
    ATTRS{number}=="1"

  looking at parent device '/devices/pci0000:00/0000:00:1a.1/usb3/3-1/3-1:1.0':
    KERNELS=="3-1:1.0"
    SUBSYSTEMS=="usb"
    DRIVERS=="snd-usb-audio"
    ATTRS{bInterfaceClass}=="01"
    ATTRS{supports_autosuspend}=="1"
    ATTRS{bNumEndpoints}=="00"
    ATTRS{bInterfaceNumber}=="00"
    ATTRS{bInterfaceSubClass}=="01"
    ATTRS{bAlternateSetting}==" 0"
    ATTRS{bInterfaceProtocol}=="00"
    ATTRS{authorized}=="1"

  looking at parent device '/devices/pci0000:00/0000:00:1a.1/usb3/3-1':
    KERNELS=="3-1"
    SUBSYSTEMS=="usb"
    DRIVERS=="usb"
    ATTRS{tx_lanes}=="1"
    ATTRS{bMaxPacketSize0}=="8"
    ATTRS{avoid_reset_quirk}=="0"
    ATTRS{speed}=="12"
    ATTRS{product}=="USB Audio CODEC "
    ATTRS{version}==" 1.10"
    ATTRS{bcdDevice}=="0100"
    ATTRS{busnum}=="3"
    ATTRS{ltm_capable}=="no"
    ATTRS{devnum}=="5"
    ATTRS{configuration}==""
    ATTRS{devpath}=="1"
    ATTRS{manufacturer}=="Burr-Brown from TI              "
    ATTRS{quirks}=="0x0"
    ATTRS{bDeviceSubClass}=="00"
    ATTRS{authorized}=="1"
    ATTRS{rx_lanes}=="1"
    ATTRS{bMaxPower}=="100mA"
    ATTRS{bNumInterfaces}==" 4"
    ATTRS{maxchild}=="0"
    ATTRS{bDeviceClass}=="00"
    ATTRS{bDeviceProtocol}=="00"
    ATTRS{bNumConfigurations}=="1"
    ATTRS{bmAttributes}=="80"
    ATTRS{bConfigurationValue}=="1"
    ATTRS{urbnum}=="62"
    ATTRS{removable}=="unknown"
    ATTRS{idProduct}=="2902"
    ATTRS{idVendor}=="08bb"

  looking at parent device '/devices/pci0000:00/0000:00:1a.1/usb3':
    KERNELS=="usb3"
    SUBSYSTEMS=="usb"
    DRIVERS=="usb"
    ATTRS{manufacturer}=="Linux 4.19.0-5-amd64 uhci_hcd"
    ATTRS{idVendor}=="1d6b"
    ATTRS{devnum}=="1"
    ATTRS{bDeviceProtocol}=="00"
    ATTRS{interface_authorized_default}=="1"
    ATTRS{authorized_default}=="1"
    ATTRS{bNumConfigurations}=="1"
    ATTRS{bNumInterfaces}==" 1"
    ATTRS{product}=="UHCI Host Controller"
    ATTRS{ltm_capable}=="no"
    ATTRS{rx_lanes}=="1"
    ATTRS{removable}=="unknown"
    ATTRS{maxchild}=="2"
    ATTRS{bMaxPower}=="0mA"
    ATTRS{bcdDevice}=="0419"
    ATTRS{busnum}=="3"
    ATTRS{serial}=="0000:00:1a.1"
    ATTRS{bConfigurationValue}=="1"
    ATTRS{idProduct}=="0001"
    ATTRS{bDeviceClass}=="09"
    ATTRS{bDeviceSubClass}=="00"
    ATTRS{bMaxPacketSize0}=="64"
    ATTRS{bmAttributes}=="e0"
    ATTRS{authorized}=="1"
    ATTRS{quirks}=="0x0"
    ATTRS{speed}=="12"
    ATTRS{avoid_reset_quirk}=="0"
    ATTRS{devpath}=="0"
    ATTRS{configuration}==""
    ATTRS{urbnum}=="89"
    ATTRS{version}==" 1.10"
    ATTRS{tx_lanes}=="1"

  looking at parent device '/devices/pci0000:00/0000:00:1a.1':
    KERNELS=="0000:00:1a.1"
    SUBSYSTEMS=="pci"
    DRIVERS=="uhci_hcd"
    ATTRS{local_cpulist}=="0-1"
    ATTRS{driver_override}=="(null)"
    ATTRS{irq}=="21"
    ATTRS{revision}=="0x02"
    ATTRS{dma_mask_bits}=="32"
    ATTRS{consistent_dma_mask_bits}=="32"
    ATTRS{broken_parity_status}=="0"
    ATTRS{class}=="0x0c0300"
    ATTRS{subsystem_vendor}=="0x103c"
    ATTRS{enable}=="1"
    ATTRS{subsystem_device}=="0x2808"
    ATTRS{d3cold_allowed}=="0"
    ATTRS{local_cpus}=="3"
    ATTRS{ari_enabled}=="0"
    ATTRS{msi_bus}=="1"
    ATTRS{vendor}=="0x8086"
    ATTRS{numa_node}=="-1"
    ATTRS{device}=="0x2835"

  looking at parent device '/devices/pci0000:00':
    KERNELS=="pci0000:00"
    SUBSYSTEMS==""
    DRIVERS==""

linux

udev

alsa

回答 1

Unix & Linux用户

发布于 2019-08-02 00:24:14

我对

似乎无法区分的设备的Udev规则

可能会有帮助。我有四个一模一样的相机要固定..。

票数 0

页面原文内容由Unix & Linux提供。腾讯云小微IT领域专用引擎提供翻译支持

原文链接：

https://unix.stackexchange.com/questions/533102

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