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sensors-detect: Fix parent class discovery when multiplexer is present

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Take multiplexers into account when looking up the parent device of
each I2C adapter. We don't bother with old kernels as they didn't have
support for multiplexers anyway.


git-svn-id: http://lm-sensors.org/svn/lm-sensors/trunk@6085 7894878c-1315-0410-8ee3-d5d059ff63e0
This commit is contained in:
Jean Delvare
2012-10-30 17:18:45 +00:00
parent e817653329
commit d1d5799d51
2 changed files with 10 additions and 8 deletions
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13
prog/detect/sensors-detect
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@@ -2,7 +2,7 @@
#
# sensors-detect - Detect hardware monitoring chips
# Copyright (C) 1998 - 2002 Frodo Looijaard <frodol@dds.nl>
# Copyright (C) 2004 - 2011 Jean Delvare <khali@linux-fr.org>
# Copyright (C) 2004 - 2012 Jean Delvare <khali@linux-fr.org>
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
@@ -2696,14 +2696,15 @@ sub initialize_i2c_adapters_list
} elsif ($link =~ m/^(.*)\/i2c-$nr$/) {
$entry->{path} = "${base_dir}/i2c-$nr/device";
$entry->{parent} = "${base_dir}/i2c-$nr/$1";
} else {
$entry->{path} = "${base_dir}/i2c-$nr";
$entry->{parent} = "$entry->{path}/device";
}
} else {
}
# This works for all recent kernels (with or without
# CONFIG_I2C_COMPAT)
if (!defined $entry->{path}) {
my $link = readlink("${base_dir}/i2c-$nr");
$link =~ s/\/i2c-$nr$//;
$entry->{path} = "${base_dir}/i2c-$nr";
$link =~ s/(\/i2c-[0-9]+)+$//; # Handle multiplexers too
$entry->{parent} = "${base_dir}/$link";
}