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Drop detection of the Philips Semiconductors PCA9540. This is an I2C

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multiplexer, it should be handled transparently at the kernel level.
On top of that, it can't be detected reliably, and the pca9540 driver
doesn't even exist in Linux 2.6.


git-svn-id: http://lm-sensors.org/svn/lm-sensors/branches/lm-sensors-3.0.0@5045 7894878c-1315-0410-8ee3-d5d059ff63e0
This commit is contained in:
Jean Delvare
2007-11-26 13:01:30 +00:00
parent 4cdbe1ff23
commit 48035c2161
2 changed files with 3 additions and 24 deletions
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24
prog/detect/sensors-detect
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@@ -1461,12 +1461,6 @@ use vars qw(@pci_adapters_sis5595 @pci_adapters_sis645 @pci_adapters_sis96x);
i2c_addrs => [0x2f],
i2c_detect => sub { fintek_detect(7, @_); },
},
{
name => "Philips Semiconductors PCA9540",
driver => "pca9540",
i2c_addrs => [0x70],
i2c_detect => sub { pca9540_detect(@_); },
},
{
name => "Smart Battery",
driver => "smartbatt",
@@ -5213,24 +5207,6 @@ sub fintek_detect
return 7;
}
# $_[0]: A reference to the file descriptor to access this chip.
# $_[1]: Address
# Returns: undef if not detected, 1 if detected
# Detection is rather difficult, since the PCA9540 has a single register.
# Fortunately, no other device is known to live at this address.
sub pca9540_detect
{
my ($file, $addr) = @_;
my $reg = i2c_smbus_read_byte($file);
return if ($reg & 0xfa);
return if $reg != i2c_smbus_read_byte($file);
return if $reg != i2c_smbus_read_byte($file);
return if $reg != i2c_smbus_read_byte($file);
return 1;
}
# This checks for non-FFFF values for temperature, voltage, and current.
# The address (0x0b) is specified by the SMBus standard so it's likely
# that this really is a smart battery.