ashd 198 sound/usb/quirks.c struct uac1_as_header_descriptor *ashd; ashd 222 sound/usb/quirks.c ashd = snd_usb_find_csint_desc(alts->extra, alts->extralen, NULL, ashd 226 sound/usb/quirks.c if (!ashd || ashd->bLength < 7 ||