clean_bg 265 drivers/misc/echo/echo.c int clean_bg; clean_bg 360 drivers/misc/echo/echo.c clean_bg = rx - echo_value; clean_bg 361 drivers/misc/echo/echo.c ec->lclean_bgacc += abs(clean_bg) - ec->lclean_bg; clean_bg 413 drivers/misc/echo/echo.c lms_adapt_bg(ec, clean_bg, shift);