immanuel litzroth wrote:
> >Apr 13 12:08:39 voodochile kernel: [  169.622067] usb 2-10: new full speed 
> >USB device using ohci_hcd and address 5
> >Apr 13 12:08:39 voodochile kernel: [  169.844566] usb 2-10: configuration #1 
> >chosen from 1 choice
> >Apr 13 12:08:39 voodochile kernel: [  169.847594] snd-usb-audio: probe of 
> >2-10:1.0 failed with error -5
> >Apr 13 12:08:39 voodochile kernel: [  169.847616] snd-usb-audio: probe of 
> >2-10:1.1 failed with error -5
> >Apr 13 12:08:44 voodochile kernel: [  174.656857] usb 2-9: new full speed 
> >USB device using ohci_hcd and address 6
> >Apr 13 12:08:44 voodochile kernel: [  174.879643] usb 2-9: configuration #1 
> >chosen from 1 choice
> >Apr 13 12:08:44 voodochile kernel: [  174.882987] snd-usb-audio: probe of 
> >2-9:1.0 failed with error -5
> >Apr 13 12:08:44 voodochile kernel: [  174.883013] snd-usb-audio: probe of 
> >2-9:1.1 failed with error -5
> What's up with that?

I'd guess the driver doesn't claim all the interfaces that the device
has.  This shouldn't matter.

> Then if I do and aplaymidi -l it lists the following ports:
>  40:0    AMT8                             AMT8 MIDI 1
>  40:1    AMT8                             AMT8 MIDI 2
>  40:2    AMT8                             AMT8 MIDI 3
>  40:3    AMT8                             AMT8 MIDI 4
>  40:4    AMT8                             AMT8 MIDI 5
>  40:5    AMT8                             AMT8 MIDI 6
>  40:6    AMT8                             AMT8 MIDI 7
>  40:7    AMT8                             AMT8 MIDI 8
>  40:8    AMT8                             AMT8 Broadcast
>  44:0    AMT8                             AMT8 MIDI 1
>  44:1    AMT8                             AMT8 MIDI 2
>  44:2    AMT8                             AMT8 MIDI 3
>  44:3    AMT8                             AMT8 MIDI 4
>  44:4    AMT8                             AMT8 MIDI 5
>  44:5    AMT8                             AMT8 MIDI 6
>  44:6    AMT8                             AMT8 MIDI 7
>  44:7    AMT8                             AMT8 MIDI 8
>  44:8    AMT8                             AMT8 Broadcast
> Is it possible to have other names generated for these ports through
> some magic?

You could add some entries to the snd_usbmidi_port_info array in the
driver source ...

> Preferably each port would be named after the synth connected to it.

Changing port names at runtime isn't supported by the driver.

> Then when I play the devices I get messages in /var/log/messages saying
> Apr 11 23:03:56 voodochile kernel: [14700.085974] rtc: lost 28 interrupts
> Apr 11 23:04:26 voodochile kernel: [14730.054964] rtc: lost 28 interrupts
> Apr 11 23:04:56 voodochile kernel: [14760.023963] rtc: lost 28 interrupts
> What's up with that?

Every thirty seconds, something on your computer eats some CPU and
disables all interrupts for about 27 milliseconds.  If you have a laptop,
this it probably some fan control or power management stuff done by the
BIOS.


Best regards,
Clemens

------------------------------------------------------------------------------
Stay on top of everything new and different, both inside and 
around Java (TM) technology - register by April 22, and save
$200 on the JavaOne (SM) conference, June 2-5, 2009, San Francisco.
300 plus technical and hands-on sessions. Register today. 
Use priority code J9JMT32. http://p.sf.net/sfu/p
_______________________________________________
Alsa-user mailing list
Alsa-user@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/alsa-user

Reply via email to