Changeset 5907 for lm-sensors/trunk/prog/detect

Timestamp:

01/21/11 18:20:10 (16 months ago)

Author:

groeck

Message:

Added detection of MAX6639 to sensors-detect

Files:

• lm-sensors/trunk/prog/detect/sensors-detect (modified) (2 diffs)

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

@@ -829 +829 @@
                 i2c_detect => sub { max1668_detect(@_, 2); },
         }, {
+                name => "Maxim MAX6639",
+                driver => "max6639",
+                i2c_addrs => [0x2c, 0x2e, 0x2f],
+                i2c_detect => sub { max6639_detect(@_); },
+        }, {
                 name => "Maxim MAX6650/MAX6651",
                 driver => "max6650",
@@ -5445 +5450 @@
         push @res, (($reg & 0x70) >> 4) + 0x48 unless $reg & 0x80;
         return @res;
+}
+
+# Chip to detect: MAX6639
+# Registers used:
+#   0x3d: Device ID
+#   0x3e: Manufacturer ID
+#   0x3f: Chip revision
+sub max6639_detect
+{
+        my ($file, $addr) = @_;
+        my ($man_id, $dev_id, $rev);
+
+        $dev_id = i2c_smbus_read_byte_data($file, 0x3d);
+        $man_id = i2c_smbus_read_byte_data($file, 0x3e);
+        $rev = i2c_smbus_read_byte_data($file, 0x3f);
+        
+        return unless $man_id == 0x4d;  # Maxim
+        return unless $dev_id == 0x58;  # MAX6639
+        return unless $rev == 0x00;
+
+        return 6;
 }