RBCL 853 drivers/char/pcmcia/synclink_cs.c fifo_count = (unsigned char)(read_reg(info, CHA+RBCL) & 0x1f); RBCL 903 drivers/char/pcmcia/synclink_cs.c fifo_count = (unsigned char)(read_reg(info, CHA+RBCL) & 0x1f);