[Pkg-alsa-devel] Bug#418602: Acknowledgement (alsa-source: alsa-source doesn't build (with module-assistant) on freshly-upgraded etch)

[Mark Eichin]

The proximate cause of that obscure error message appears to be that
  /usr/src/modules/alsa-driver/usb/usx2y/usbusx2y.h
says

   typedef struct {
        snd_usb_audio_t    chip;
        ...

but snd_usb_audio_t isn't defined anywhere.