Clarify stepper motion during additional surface location attempts.

diff --git a/pyafm.py b/pyafm.py
index ae7e6a0c7fcb428babc6c798b6c22f7a9d7bb68b..b78284f2f943ee78c00e845915571798140dd354 100644 (file)
--- a/pyafm.py
+++ b/pyafm.py
@@ -160,7 +160,8 @@ class AFM (object):
             cd = self.piezo.read_deflection()
 
         for i in range(2*max(1, self.stepper.backlash)):
-            LOG.debug('additional surface location attempt')
+            LOG.debug(
+                'additional surface location attempt (stepping backwards)')
             try:
                 pos = self.piezo.get_surface_position(
                     axis_name=self.axis_name, max_deflection=target_deflection)