Didier:
...
> Erratum again. The devices are accessible through symlinks in
> /sys/dev/char and /sys/dev/block. The name of each symlink apparently
> duplicates the contents of the dev file in the directory it points to. Eg:
>
> /sys/dev/char/4:0 --> /sys/devices/virtual/tty/tty0/
> and /sys/devices/virtual/tty/tty0/dev contains "4:0", meaning the
> device file should be created with
> 'mknod /dev/tty0 c 4 0'
So something like this whould suffice to populate /dev
#!/usr/bin/perl -w
use strict;
my $char = "/sys/dev/char";
my $block = "/sys/dev/block";
sub run_dir($$) {
my $dir = shift;
my $type = shift;
opendir(my $dh, $dir) || return;
while(readdir $dh) {
next unless m/^\d+:\d+$/;
my $file = "$dir/$_";
my ($maj,$min) = split(/:/);
my $name = readlink($file);
next unless (defined($name));
$name =~ s|.*/||;
print "mknod $name $type $maj $min\n";
}
closedir $dh;
}
sub main() {
run_dir($char, "c");
run_dir($block, "b");
}
main();
It woouldn't be hard to convert that to a shell script.
Regards,
/Karl Hammar
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