> I'm hoping you can shed some light on a problem I have with a DJ > controller (Vestax VCI-100MKII) that's also a soundcard. My problem is > that when I connect it, it keeps disconnecting. There may be two unrelated things going on. You could try addressing this first just to see if it gets rid of some error messages: > Nov 30 14:33:12 wintermute kernel: [ 936.380745] usb 3-2: current rate > 48000 is different from the runtime rate 44100 I think that may be indicating that the interface will only run at 48k, but your software is currently attempting to open the interface with a 44.1k setting. Or possibly the reverse, but I think indicating the device runs at 48k. > Nov 30 14:33:12 wintermute kernel: [ 936.386780] usbhid 3-2:1.5: can't > add hid device: -71 > Nov 30 14:33:12 wintermute kernel: [ 936.386793] usbhid: probe of 3- > 2:1.5 failed with error -71 I found the errno program to convert the error number to descriptions: ~]$ errno 71 EPROTO 71 Protocol error That seems like the USB stack complaining that device does not implement USB protocol correctly, or possibly is not responding correctly for a USB HID type device. The newer laptop does not get the same error (the complaint about sample rate is still present). > Nov 30 15:45:00 ono-sendai kernel: [107245.725923] usb 3-8.3: 2:1: > cannot set freq 44100 to ep 0x82 > Nov 30 15:45:00 ono-sendai kernel: [107245.732227] usbhid 3-8.3:1.5: > can't add hid device: -32 > Nov 30 15:45:00 ono-sendai kernel: [107245.732236] usbhid: probe of 3- > 8.3:1.5 failed with error -32 I do not understand the error 32 generation: $ errno 32 EPIPE 32 Broken pipe -- Chris Caudle _______________________________________________ Linux-audio-user mailing list Linux-audio-user@xxxxxxxxxxxxxxxxxxxx https://lists.linuxaudio.org/listinfo/linux-audio-user
