UAC_HEADER
ac_desc->bDescriptorSubtype = UAC_HEADER;
.bDescriptorSubtype = UAC_HEADER,
NULL, UAC_HEADER);
ms_header->bDescriptorSubtype == UAC_HEADER)
cs_desc[2] == UAC_HEADER) {
ms_header->bDescriptorSubtype != UAC_HEADER)
FUNC(UAC_VERSION_1, UAC_HEADER, validate_uac1_header),
FIXED(UAC_VERSION_2, UAC_HEADER, struct uac2_ac_header_descriptor),
FIXED(UAC_VERSION_3, UAC_HEADER, struct uac3_ac_header_descriptor),