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sensors-detect: Add a special case for probing i2c address 0x73 for FSC chips,

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as at least the Syleus locks up with our regular probe code. Note that to our
current knowledge only FSC chips live on this address, and for them
this probe method is safe.



git-svn-id: http://lm-sensors.org/svn/lm-sensors/trunk@5657 7894878c-1315-0410-8ee3-d5d059ff63e0
This commit is contained in:
Hans de Goede
2009-02-18 20:26:20 +00:00
parent 680d5515f6
commit a7ad8ad9cc
2 changed files with 9 additions and 0 deletions
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8
prog/detect/sensors-detect
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@@ -2516,6 +2516,7 @@ use constant SMBUS_WORD_DATA => 3;
use constant I2C_FUNC_SMBUS_QUICK => 0x00010000;
use constant I2C_FUNC_SMBUS_READ_BYTE => 0x00020000;
use constant I2C_FUNC_SMBUS_READ_BYTE_DATA => 0x00080000;
# Get the i2c adapter's functionalities
# $_[0]: Reference to an opened filehandle
@@ -2639,6 +2640,13 @@ sub i2c_probe
# protection address.
return 0 unless ($funcs & I2C_FUNC_SMBUS_READ_BYTE);
return i2c_smbus_access($file, SMBUS_READ, 0, SMBUS_BYTE, []);
} elsif ($addr == 0x73) {
# Special case for FSC chips, as at least the Syleus locks
# up with our regular probe code. Note that to our current
# knowledge only FSC chips live on this address, and for them
# this probe method is safe.
return 0 unless ($funcs & I2C_FUNC_SMBUS_READ_BYTE_DATA);
return i2c_smbus_access($file, SMBUS_READ, 0, SMBUS_BYTE_DATA, []);
} else {
return 0 unless ($funcs & I2C_FUNC_SMBUS_QUICK);
return i2c_smbus_access($file, SMBUS_WRITE, 0, SMBUS_QUICK, []);