Nicolai Krakowiak wrote: > Hi folks, > > I have an unsupported USB device (Focusrite Scarlett 18i6), and I was > curious what steps are necessary to get it to work under Linux. > The internal sound card on this machine works well (hw:0). After > loading snd_usb_audio, the 18i6 shows up as expected as device 1: > > % cat /proc/asound/cards > 0 [NVidia ]: HDA-Intel - HDA NVidia > HDA NVidia at 0xe2300000 irq 20 > 1 [USB ]: USB-Audio - Scarlett 18i6 USB > Focusrite Scarlett 18i6 USB at > usb-0000:00:0b.1-8, high speed > > But this fails: > % speaker-test -Dhw:1 -c2 -twav > speaker-test 1.0.24.2 > > Playback device is hw:1 > Stream parameters are 48000Hz, S16_LE, 2 channels > WAV file(s) > Playback open error: -2,No such file or directory > > The contents of /dev/snd: > /dev/snd/pcmC0D0c /dev/snd/pcmC0D0p /dev/snd/pcmC0D1c > /dev/snd/pcmC0D1p /dev/snd/pcmC0D2c > > Plugging the device in yields the following output from dmesg: > > [158184.220019] usb 1-8: new high speed USB device using ehci_hcd > and address 20 > [158184.372587] 20:1:1 : invalid UAC_FORMAT_TYPE desc > [158184.372709] 20:2:1 : invalid UAC_FORMAT_TYPE desc > [158184.372713] 20:2:2 : invalid UAC_FORMAT_TYPE desc > [158184.372835] usbaudio: unit 51: unexpected type 0x09 > [158184.372845] snd-usb-audio: probe of 1-8:1.0 failed with error -5 > > I've attached the output from alsa-info.sh. > > If it's useful information, I've also booted Windows XP under > VirtualBox (Linux host OS) and was able to use Focusrite's mixer > application, see activity in the meters with a microphone, and hear > differences when changing levels in the headphone out/mic in/etc. > I was not able to play audio or record using the 18i6 through XP, > though. The device does work as expected when running XP as a host > OS. > > Any ideas on how I could get the 18i6 working, or is this a lost cause > without documentation from Focusrite? > > Thanks, > Nicolai Try making the Focusrite the primary device. This worked for me under somewhat similar circumstances. Graham Dicker ------------------------------------------------------------------------------ All of the data generated in your IT infrastructure is seriously valuable. Why? It contains a definitive record of application performance, security threats, fraudulent activity, and more. Splunk takes this data and makes sense of it. IT sense. And common sense. http://p.sf.net/sfu/splunk-d2d-c2 _______________________________________________ Alsa-user mailing list Alsa-user@xxxxxxxxxxxxxxxxxxxxx https://lists.sourceforge.net/lists/listinfo/alsa-user
