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52_I2C_MCP342x: Bugfix in GetFN

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git-svn-id: https://svn.fhem.de/fhem/trunk@9284 2b470e98-0d58-463d-a4d8-8e2adae1ed80
This commit is contained in:
klauswitt 2015-09-21 21:05:57 +00:00
parent b24a94442b
commit a280cd51c3
1 changed files with 3 additions and 3 deletions
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6
fhem/FHEM/52_I2C_MCP342x.pm
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@ -208,7 +208,7 @@ sub I2C_MCP342x_Get($@) {
my $cmd = $a[1];
my $rex = "^[1-" . $hash->{channels} . "]\$";
if ($cmd =~ m/$rex/i) {
if (defined $cmd && $cmd =~ m/$rex/i) {
my $resol = defined $a[2] ? $a[2] : AttrVal($hash->{NAME},("ch" . $cmd . "resolution"),"12");
return "Wrong resolution, use 12, 14, 16 or 18" unless $resol =~ m/^1(2|4|6|8)$/i;
my $gain = defined $a[3] ? $a[3] : AttrVal($hash->{NAME},("ch" . $cmd . "gain"),"1");
@ -228,8 +228,8 @@ sub I2C_MCP342x_Get($@) {
I2C_MCP342x_readvoltage($hash,$_,$resol,$gain);
}
my @gets = ('1', '2');
push(@gets,('3', '4')) if $hash->{channels} == 4;
return 'Unknown argument ' . $cmd . ', choose one of ' . join(' ', @gets)
push(@gets,('3', '4')) if $hash->{channels} == 4;
return 'Unknown argument' . (defined $cmd ? (" " . $cmd) : "" ) . ', choose one of ' . join(' ', @gets)
}
}