The touchscreen driver is maintenance free except for the pen-down or
touch threshold. Some resistive displays and board combinations may
-require tuning of this threshold. The driver exposes some of it's
+require tuning of this threshold. The driver exposes some of its
internal state in the sys filesystem. If the kernel is configured
with it, CONFIG_SYSFS, and sysfs is mounted at /sys, there will be a
directory