mshd 294 sound/usb/quirks.c struct usb_ms_header_descriptor *mshd; mshd 298 sound/usb/quirks.c mshd = (struct usb_ms_header_descriptor *)alts->extra; mshd 300 sound/usb/quirks.c mshd->bLength < 7 || mshd 301 sound/usb/quirks.c mshd->bDescriptorType != USB_DT_CS_INTERFACE || mshd 302 sound/usb/quirks.c mshd->bDescriptorSubtype != USB_MS_HEADER)