Setting Up USB Audio Device Support

Apr 20, 2016

This guide will help you get your LEDE/OpenWRT device supporting USB Audio. This can then be used for cool tasks such as setting up sound servers.

SSH to your OpenWRT device

If you are using Windows then start PuTTY and click Session on the left side, select SSH from the options, and then enter in the IP Address of your OpenWRT box into the Host Name field.

Once you’ve done this just click on Open to start up the SSH connection.

If you are connecting via terminal, then just SSH to your OpenWRT device using the following command, where is your OpenWRT device’s IP address.

Prerequisites — USB Support

First we need to ensure that your LEDE/OpenWRT device has basic support for USBs. Some builds come with this as standard, but if yours does not then just follow these steps:

USB 1.1 Support

This will either have a UHCI or OHCI interface. Pick one of the bellow to start off with, and if it is incorrect it will let you know which one you need to install.


Run the following commands for UHCI:

opkg update
opkg install kmod-usb-uhci
insmod usbcore
insmod uhci


Run the following commands for OHCI:

opkg update
opkg install kmod-usb-ohci
insmod usb-ohci

USB 2.0 Support

You will need to install the needed packages by running the following:

opkg update
opkg install kmod-usb2
insmod ehci-hcd

USB Audio Support

We need to install some packages to add support for USB Audio, so run the following command:

opkg install kmod-usb-audio kmod-sound-core usbutils

Now connect your USB Audio device and make sure it is powered on. Run the following command to ensure that it is being detected:

lsusb You should see a sound device in the output.

Sound Drivers

Now that the USB is ready, we need to install some sound drivers. We are going to install Alsa for this. So run the following command:

opkg install alsa-libs libsndfile alsa-utils

Once you have done this, reboot your LEDE/OpenWRT device, reconnect to it and then run the following command to confirm that your soundcard is working and control the volumes.


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