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. -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED]