chars_free 48 drivers/staging/speakup/buffers.c int chars_free; chars_free 51 drivers/staging/speakup/buffers.c chars_free = SYNTH_BUF_SIZE - (buff_in - buff_out); chars_free 53 drivers/staging/speakup/buffers.c chars_free = buff_out - buff_in; chars_free 54 drivers/staging/speakup/buffers.c return chars_free;