gau 256 drivers/usb/gadget/function/u_uac1_legacy.c static int gaudio_close_snd_dev(struct gaudio *gau) gau 261 drivers/usb/gadget/function/u_uac1_legacy.c snd = &gau->control; gau 266 drivers/usb/gadget/function/u_uac1_legacy.c snd = &gau->playback; gau 271 drivers/usb/gadget/function/u_uac1_legacy.c snd = &gau->capture;