From 9322291a6b0143d68092cce1f6c41f40065abd42 Mon Sep 17 00:00:00 2001
From: Jean Delvare <khali@linux-fr.org>
Date: Mon, 18 Jan 2010 16:19:15 +0000
Subject: [PATCH] Add detection for Analog Devices ADT7411.

git-svn-id: http://lm-sensors.org/svn/lm-sensors/trunk@5817 7894878c-1315-0410-8ee3-d5d059ff63e0
---
 CHANGES                    |  1 +
 prog/detect/sensors-detect | 24 ++++++++++++++++++++++++
 2 files changed, 25 insertions(+)

diff --git a/CHANGES b/CHANGES
index 993c8ce5..e0bd33f9 100644
--- a/CHANGES
+++ b/CHANGES
@@ -42,6 +42,7 @@ SVN-HEAD
                   Add detection for Nuvoton W83L771AWG/ASG
                   Add detection for VIA Nano
                   Add detection for Texas Instruments AMC6821
+                  Add detection for Analog Devices ADT7411
   sysconfig-lm_sensors-convert: Fix exit code
 
 3.1.1 (2009-06-21)
diff --git a/prog/detect/sensors-detect b/prog/detect/sensors-detect
index a33a1792..611604a1 100755
--- a/prog/detect/sensors-detect
+++ b/prog/detect/sensors-detect
@@ -586,6 +586,11 @@ use vars qw(@i2c_adapter_names);
 		driver => "adt7475",
 		i2c_addrs => [0x2c..0x2e],
 		i2c_detect => sub { adt7490_detect(@_); },
+	}, {
+		name => "Analog Devices ADT7411",
+		driver => "to-be-written",
+		i2c_addrs => [0x48, 0x4a, 0x4b],
+		i2c_detect => sub { adt7411_detect(@_); },
 	}, {
 		name => "Andigilog aSC7511",
 		driver => "to-be-written",
@@ -4362,6 +4367,25 @@ sub adt7490_detect
 	return 5;
 }
 
+# Registers used:
+#   0x4d: Device ID
+#   0x4e: Manufacturer ID
+#   0x4e: Silicon revision
+sub adt7411_detect
+{
+	my ($file, $addr) = @_;
+	my $dev_id = i2c_smbus_read_byte_data($file, 0x4d);
+	my $man_id = i2c_smbus_read_byte_data($file, 0x4e);
+	my $revision = i2c_smbus_read_byte_data($file, 0x4f);
+
+	return if $man_id != 0x41;		# Analog Devices
+	return if $dev_id != 0x02;		# ADT7411
+	# The datasheet suggests that the version is in the high nibble, but
+	# a dump from a real ADT7411 chip shows that it is in the low nibble.
+	return if ($revision & 0x0f) != 0x04;	# ADT7411
+	return 5;
+}
+
 # Chip to detect: 0 = aSC7512, 1 = aSC7611, 2 = aSC7621
 # Registers used:
 #   0x3e: Manufacturer ID