c_header 711 sound/usb/mixer.c struct uac3_cluster_header_descriptor c_header; c_header 720 sound/usb/mixer.c &c_header, sizeof(c_header)); c_header 723 sound/usb/mixer.c if (err != sizeof(c_header)) { c_header 728 sound/usb/mixer.c return c_header.bNrChannels;