[alsa-devel] ich10 usb_host vs snd_usb_audio Hercules - irq broadcast.

Clemens Ladisch clemens at ladisch.de
Fri Jul 24 10:52:59 CEST 2009

Alexey Fisher wrote:
> i found some time to investigate the issue with my "Hercules USB 5.1 
> Cannel Audio Adapter". The issue is pretty tricky and depend to host 
> hardware, in my situation this is Intel DG45ID board.
> Symptoms are: if i use this sound adapter after some time i'll get:
> irq 16: nobody cared ... Disabling IRQ #16.

The USB audio driver does not manage USB interrupts; this is probably
a problem with the USB controller driver or, more likely, with the
interrupt routing.


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