X-Git-Url: https://oss.titaniummirror.com/gitweb/?p=tinyos-2.x.git;a=blobdiff_plain;f=tos%2Fplatforms%2Ftmimsp%2Ftmirws%2Fchips%2Fsht11%2FOpenDrainC.nc;fp=tos%2Fplatforms%2Ftmimsp%2Ftmirws%2Fchips%2Fsht11%2FOpenDrainC.nc;h=f8de2aa3d26b70503d69bb9e3e155f5275a25c56;hp=e89e26f34685c0b1e634776111164f685cb6044d;hb=3aed39b6730a55e41c9ae5a8a1e690bca5746147;hpb=d8e1736a3c545ce99fa33abe443d1cc34638ee5e

diff --git a/tos/platforms/tmimsp/tmirws/chips/sht11/OpenDrainC.nc b/tos/platforms/tmimsp/tmirws/chips/sht11/OpenDrainC.nc
index e89e26f3..f8de2aa3 100644
--- a/tos/platforms/tmimsp/tmirws/chips/sht11/OpenDrainC.nc
+++ b/tos/platforms/tmimsp/tmirws/chips/sht11/OpenDrainC.nc
@@ -28,8 +28,14 @@
  */
 
 /**
- * Implement an open drain output using a GeneralIO, represented as a
- * GeneralIO.  Requires an external pull-up for proper operation.
+ * Provide an open drain output as a GeneralIO using a GeneralIO.
+ *
+ * set() puts the pin in high impedance state by selecting the pin input mode.
+ * clr() sets the pin to sink current to ground by selecting the pin output
+ * mode, logic zero.  Generally, an external pull-up resistor will be used with
+ * an open drain output.
+ *
+ * This pin can only be an open drain output and cannot be reconfigured.
  *
  * @author R. Steve McKown <rsmckown@gmail.com>
  */