hw_check_valid_format 1627 sound/usb/usbaudio.c if (!hw_check_valid_format(params, fp)) hw_check_valid_format 1681 sound/usb/usbaudio.c if (!hw_check_valid_format(params, fp)) hw_check_valid_format 1734 sound/usb/usbaudio.c if (!hw_check_valid_format(params, fp))