OpenWrt Forum Archive

Topic: USB Sound card not recognized

The content of this topic has been archived on 17 Apr 2018. There are no obvious gaps in this topic, but there may still be some posts missing at the end.

Post #1
guard
17 Mar 2011, 00:16

I have a working USB sound card based on C-media CM108 chipset which is confirmed to work for some guys.

It's somehow recognized by the system (Backfire 10.03-rc4):


root@OpenWrt:/proc/tty/driver# lsusb
Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 001 Device 006: ID 10c4:ea60 Cygnal Integrated Products, Inc. CP210x Composite Device
Bus 001 Device 004: ID 0457:0151 Silicon Integrated Systems Corp. Super Flash 1GB / GXT  64MB Flash Drive
Bus 001 Device 003: ID 0c76:1607 JMTek, LLC. audio controller <--- here it is
Bus 001 Device 002: ID 05e3:0606 Genesys Logic, Inc. USB 2.0 Hub / D-Link DUB-H4 USB 2.0 Hub
Bus 001 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub

root@OpenWrt:/proc/tty/driver# cat /proc/asound/cards
0 [Set            ]: USB-Audio - USB Headphone Set
                      USB Headphone Set at usb-ssb0:1-1.1, full speed

But....
1) there's no /dev/sound folder
though the're /dev/dsp and /dev/audio
2) it actually doesn't work on the router (ASUS wl-520gu) - when playing the stream with the madplay, I see the stream downloaded, but don't hear any sound

Any ideas?

Post #2
whbjr
27 Mar 2011, 00:40
guard wrote:

1) there's no /dev/sound folder
though the're /dev/dsp and /dev/audio
2) it actually doesn't work on the router (ASUS wl-520gu) - when playing the stream with the madplay, I see the stream downloaded, but don't hear any sound

Any ideas?

Music! mpd on Backfire on WGT634U

I don't have /dev/sound, either - I ran "strace madplay sample.mp3" and saw it try to open /dev/sound/dsp, which failed, then /dev/dsp, which worked.

(I know, my saying "it works for me" isn't all that helpful. Sorry!)

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