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  • Committer: khali
  • Date: 2012-10-30 17:11:37 UTC
  • Revision ID: svn-v4:7894878c-1315-0410-8ee3-d5d059ff63e0:lm-sensors/trunk:6084
sensors-detect: Do not scan I2C adapters on graphics cards by default.

Don't probe I2C buses on graphics cards by default. Their drivers will
typically instantiate the I2C slave devices themselves as needed, and
such probes have been occasionally reported to cause serious trouble.

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prog/detect/sensors-detect
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        my ($funcs, $chip, $addr, $class, $default, $input, @not_to_scan);
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        $class = get_pci_class($i2c_adapters[$adapter_nr]->{parent});
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        if (($class & 0xff00) == 0x0400) {
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                # Do not probe adapters on PCI multimedia cards by default
 
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        # Do not probe adapters on multimedia and graphics cards by default
 
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        if (($class & 0xff00) == 0x0400 || ($class & 0xff00) == 0x0300) {
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                $default = 0;
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        } elsif ($class == 0x0c01 || $class == 0x0c05
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              || find_i2c_adapter_driver($i2c_adapters[$adapter_nr]->{name})) {