sensors-detect: Handle the W83791D driver difference between kernels.

Patch from Charles Spirakis.


git-svn-id: http://lm-sensors.org/svn/lm-sensors/trunk@4044 7894878c-1315-0410-8ee3-d5d059ff63e0

CHANGES

@@ -40,6 +40,7 @@ lm_sensors CHANGES file
                            F75122R/RG, F75373S/SG, F75375S/SP, F75383S/M,
                            F75384S/M, F75387SG/RG and F81218D detection
                           Add Winbond W83793R/G detection
+                          Handle the W83791D driver difference between kernels
 
 
 2.10.0 (20060214)

prog/detect/sensors-detect

@@ -1064,12 +1064,6 @@ use subs qw(mtp008_detect lm78_detect lm78_isa_detect lm78_alias_detect
        i2c_addrs => [0x2d],
        i2c_detect => sub { w83781d_detect 2, @_},
      } ,
-     {
-       name => "Winbond W83791D",
-       driver => "w83781d",
-       i2c_addrs => [0x2c..0x2f],
-       i2c_detect => sub { w83781d_detect 7, @_},
-     },
      {
        name => "Winbond W83792D",
        driver => "w83792d",
@@ -1625,6 +1619,23 @@ use subs qw(mtp008_detect lm78_detect lm78_isa_detect lm78_alias_detect
      },
 );
 
+# Special case chip information goes here and would be included in
+# the chip_special_cases routine below
+use vars qw($chip_kern24_w83791d $chip_kern26_w83791d);
+$chip_kern24_w83791d = {
+	name => "Winbond W83791D",
+	driver => "w83781d",
+	i2c_addrs => [0x2c..0x2f],
+	i2c_detect => sub { w83781d_detect 7, @_ },
+};
+
+$chip_kern26_w83791d = {
+	name => "Winbond W83791D",
+	driver => "w83791d",
+	i2c_addrs => [0x2c..0x2f],
+	i2c_detect => sub { w83781d_detect 7, @_ },
+};
+
 # This is a list of all recognized superio chips. 
 # Each entry must have the following fields:
 #  name: The full chip name
@@ -2901,6 +2912,21 @@ sub scan_superio
 # CHIP DETECTION #
 ##################
 
+# This routine allows you to select which chips are optionally added to the
+# chip detection list. The most common use is to allow for different chip
+# detection/drivers based on different linux kernels
+# This routine follows the pattern of the SiS adapter special cases
+sub chip_special_cases
+{
+	# Based on the kernel, add the appropriate chip structure to the
+	# chip_ids detection list
+	if (kernel_version_at_least(2, 6, 0)) {
+		push @chip_ids, $chip_kern26_w83791d;
+	} else {
+		push @chip_ids, $chip_kern24_w83791d;
+	}
+}
+
 # Each function returns a confidence value. The higher this value, the more
 # sure we are about this chip. A Winbond W83781D, for example, will be
 # detected as a LM78 too; but as the Winbond detection has a higher confidence 
@@ -5261,6 +5287,10 @@ sub main
     }
   }
 
+  # Before looking for chips, make sure any special case chips are
+  # added to the chip_ids list
+  chip_special_cases();
+
   print "\n We are now going to do the adapter probings. Some adapters may ",
         "hang halfway\n",
         " through; we can't really help that. Also, some chips will be double ",