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Added detection of MAX6639 to sensors-detect

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git-svn-id: http://lm-sensors.org/svn/lm-sensors/trunk@5907 7894878c-1315-0410-8ee3-d5d059ff63e0
This commit is contained in:
Guenter Roeck
2011-01-21 17:20:10 +00:00
parent ee31bcf37e
commit f0240f421b
2 changed files with 27 additions and 0 deletions
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1
CHANGES
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@@ -19,6 +19,7 @@ SVN HEAD
Add detection of the National Semiconductor LM94 Add detection of the National Semiconductor LM94
Add detection of the ITE IT8728F Add detection of the ITE IT8728F
Implement universal detection for coretemp (#2381) Implement universal detection for coretemp (#2381)
Add detection of Maxim MAX6639
3.2.0 (2010-10-10) 3.2.0 (2010-10-10)
libsensors: Increase MAX_SENSORS_PER_TYPE to 24 libsensors: Increase MAX_SENSORS_PER_TYPE to 24

26
prog/detect/sensors-detect
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@@ -827,6 +827,11 @@ use vars qw(@i2c_adapter_names);
driver => "max1668", driver => "max1668",
i2c_addrs => [0x18..0x1a, 0x29..0x2b, 0x4c..0x4e], i2c_addrs => [0x18..0x1a, 0x29..0x2b, 0x4c..0x4e],
i2c_detect => sub { max1668_detect(@_, 2); }, 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", name => "Maxim MAX6650/MAX6651",
driver => "max6650", driver => "max6650",
@@ -5446,6 +5451,27 @@ sub w83l784r_detect
return @res; 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;
}
# The max6650 has no device ID register. However, a few registers have # The max6650 has no device ID register. However, a few registers have
# spare bits, which are documented as being always zero on read. We read # spare bits, which are documented as being always zero on read. We read
# all of these registers check the spare bits. Any non-zero means this # all of these registers check the spare bits. Any non-zero means this