发现我的 USB 扬声器（设备）在哪里
我正在运行 Debian Sid，我想知道我的 USB 扬声器在系统中的位置。例如：当我插入笔式驱动器时，dmesg 会显示它的位置（sda、sdb 等）。但是当我插入 USB 扬声器时，它没有显示任何内容：
[12032.284042] usb 2-2: new full speed USB device using ohci_hcd and address 2
[12032.497098] usb 2-2: New USB device found, idVendor=0d8c, idProduct=0103
[12032.497103] usb 2-2: New USB device strings: Mfr=1, Product=2, SerialNumber=0
[12032.497107] usb 2-2: Product: USB Sound Device
[12032.497109] usb 2-2: Manufacturer: C-Media INC.
[12032.497266] usb 2-2: configuration #1 chosen from 1 choice
我如何才能发现它在哪里？有没有命令显示已连接的设备？ 谢谢。
I'm running Debian Sid and I want to know where are my USB speakers in system. For example: When I plug my pen drive, dmesg shows where it is (sda, sdb, etc). But when I plug my USB Speakers, it doesn't show anything:
[12032.284042] usb 2-2: new full speed USB device using ohci_hcd and address 2
[12032.497098] usb 2-2: New USB device found, idVendor=0d8c, idProduct=0103
[12032.497103] usb 2-2: New USB device strings: Mfr=1, Product=2, SerialNumber=0
[12032.497107] usb 2-2: Product: USB Sound Device
[12032.497109] usb 2-2: Manufacturer: C-Media INC.
[12032.497266] usb 2-2: configuration #1 chosen from 1 choice
How could I discover where it is? Is there a command to show devices connected?
Thank you.
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它被添加为下一个可用的 ALSA 卡。
It's added as the next available ALSA card.
最简单的方法是在设备连接之前和之后区分 /dev 的列表。
The easiest way is to diff the listing of /dev before and after the device is connected.
（哎呀，我发现我可能误解了这个问题。抱歉。我会留下我的答案，以防它有点用）。
尝试
lsusb。它为您提供了已连接 USB 设备的概览。(Oops, I see that I probably misunderstood the question. Sorry. I'll leave my answer in case it's remotely useful).
Try
lsusb. It gives you an overview of USB devices connected.