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I have raspberry pi running raspbian that has 3 sound devices plugged in via USB. I successfully renamed the card ids for alsa based on the USB port with this rule:

SUBSYSTEM!="sound", GOTO="my_usb_audio_end"
ACTION!="add", GOTO="my_usb_audio_end"

DEVPATH=="/devices/pci0000:00/0000:00:14.0/usb1/1-9/1-9.2/1-9.2:1.0/sound/card?", ATTR{id}="Audio_Channel_1"

LABEL="my_usb_audio_end"

(plase not that the USB path may be off, ive done this on my computer for now not on the raspberry).

What I would like to change now too is the device name reported by lsusb. Currently this is:

USB PnP Sound Device, USB Audio

How can I also rename the device name with udev?

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2 Answers 2

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You can't change the output of lsusb with udev.

Actually, you can't change the output of lsusb at all, the names are reported by the USB devices themselves.

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While lsusb only shows the device name by vendor and model ID (on my system it is in /usr/lib/udev/hwdb.d/*usb*) where you potentially could change device names, you actually changed ALSA's card ID.

You can check it with aplay -L or /proc/asound/cards and use it as a device name.

See https://www.alsa-project.org/wiki/Changing_card_IDs_with_udev

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