Symbol: VT8500_URUSR
drivers/tty/serial/vt8500_serial.c
252
usr = vt8500_read(port, VT8500_URUSR);
drivers/tty/serial/vt8500_serial.c
292
while ((vt8500_read(port, VT8500_URUSR) & (1 << 5)) && --loops)