play_buf 305 drivers/usb/gadget/function/f_uac1_legacy.c struct f_audio_buf *play_buf; play_buf 312 drivers/usb/gadget/function/f_uac1_legacy.c play_buf = list_first_entry(&audio->play_queue, play_buf 314 drivers/usb/gadget/function/f_uac1_legacy.c list_del(&play_buf->list); play_buf 317 drivers/usb/gadget/function/f_uac1_legacy.c u_audio_playback(&audio->card, play_buf->buf, play_buf->actual); play_buf 318 drivers/usb/gadget/function/f_uac1_legacy.c f_audio_buffer_free(play_buf);