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Take ownership of brightness file, if possible 

Improve errors, if not.
This commit is contained in:
John Mertz 2023-11-17 18:40:36 -07:00
parent 62e9b4b53d
commit 7630ee5878
1 changed files with 7 additions and 3 deletions
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10
thinkpad/blc.pl
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@ -65,6 +65,7 @@
# Files containing current and max brightness values # Files containing current and max brightness values
my $cur_file = "/sys/class/backlight/intel_backlight/brightness"; my $cur_file = "/sys/class/backlight/intel_backlight/brightness";
chmod('0644',$cur_file) unless ( -w $cur_file );
my $max_file = "/sys/class/backlight/intel_backlight/max_brightness"; my $max_file = "/sys/class/backlight/intel_backlight/max_brightness";
my $cur_log = $ENV{HOME}."/.spool/blc.current"; my $cur_log = $ENV{HOME}."/.spool/blc.current";
my $last_log = $ENV{HOME}."/.spool/blc.last"; my $last_log = $ENV{HOME}."/.spool/blc.last";
@ -125,9 +126,12 @@ sub logger
sub writef sub writef
{ {
my $target = shift; my $target = shift;
open(my $fh,'>',$cur_file); if (open(my $fh,'>',$cur_file)) {
print $fh $target; print $fh $target;
close($fh); close($fh);
} else {
print "Failed to write to $cur_file: $!\n";
}
} }
sub increment sub increment