Changeset 5613

Timestamp:

01/19/09 22:07:56 (4 years ago)

Author:

khali

Message:

Fix detection of older DS1621.

Location:

lm-sensors/trunk

Files:

• CHANGES (modified) (1 diff)
• prog/detect/sensors-detect (modified) (2 diffs)

lm-sensors/trunk/CHANGES

@@ -5 +5 @@
   File lm_sensors.lsm: Delete, don't advertise a legacy branch
   File doc/developers/release_checklist: Skip mail to lsm
+  Program sensors-detect: Fix detection of older DS1621
 
 2.10.8 (20081216)

lm-sensors/trunk/prog/detect/sensors-detect

@@ -3864 +3864 @@
   return if ($conf & 0x10);
 
-  my $counter = i2c_smbus_read_byte_data($file, 0xA8);
-  my $slope = i2c_smbus_read_byte_data($file, 0xA9);
-  return if ($slope != 0x10 || $counter > $slope);
-
   my $temp = i2c_smbus_read_word_data($file, 0xAA);
   return if $temp < 0 || ($temp & 0x0f00);
@@ -3880 +3876 @@
   return if ($temp == 0 && $high == 0 && $low == 0 && $conf == 0);
 
-  return 3;
+  # Old versions of the DS1621 apparently don't have the counter and 
+  # slope registers (or they return crap) 
+  my $counter = i2c_smbus_read_byte_data($file, 0xA8);
+  my $slope = i2c_smbus_read_byte_data($file, 0xA9);
+  return ($slope == 0x10 && $counter <= $slope) ? 3 : 2;
 }