IEC958_AES2_CON_SOURCE_UNSPEC
cs[2] = IEC958_AES2_CON_SOURCE_UNSPEC | IEC958_AES2_CON_CHANNEL_UNSPEC;
IEC958_AES2_CON_SOURCE_UNSPEC;
cs[2] = IEC958_AES2_CON_SOURCE_UNSPEC | IEC958_AES2_CON_CHANNEL_UNSPEC;
cs[2] = IEC958_AES2_CON_SOURCE_UNSPEC | IEC958_AES2_CON_CHANNEL_UNSPEC;
iec->status[2] |= IEC958_AES2_CON_SOURCE_UNSPEC;