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    SubjectRe: Does sysfs really provides persistent hardware path to devices?
     On Sat, Jan 17, Andrey Borzenkov wrote:

    > > > Well, we did not move a tiny bit since the beginning of this thread :)
    > > > You still did not show me namedev configuration that implements
    > > > persistent name for a device based on its physical location :)))
    > >
    > > Ok, do you have any other ideas of how to do this?
    > >
    >
    > given current sysfs implementation - using wildcards remains the only
    > solution. I for now am using this trivial script:
    >
    > pts/0}% cat /etc/udev/scripts/removables
    > #!/usr/bin/perl
    >
    > my $devpath, $base;
    >
    > $base = $1 if ($ARGV[0] =~ /(.*\D)\d*$/);
    > $devpath = readlink "/sys/block/$base/device";
    >
    > if ($devpath =~
    > m|/devices/pci0000:00/0000:00:1f.4/usb2/2-2/2-2.4/2-2.4:1.0/host\d+/\d+:0:0:0|)
    > {
    > print "flash0";
    > } elsif ($devpath =~
    > m|/devices/pci0000:00/0000:00:1f.4/usb2/2-2/2-2.1/2-2.1:1.0/host\d+/\d+:0:0:0|)
    > {
    > print "flash1";
    > } elsif ($devpath =~ m|/devices/legacy/host\d+/\d+:0:4:0|) {
    > print "jaz";
    > } else {
    > exit(1);
    > }

    I'm not sure what you are trying to do. Working with the 'physical
    location' of removeable devices will probably fail. The usb-storage
    devices here have a serial field, I really hope it is unique, use it.

    --
    USB is for mice, FireWire is for men!

    sUse lINUX ag, nÜRNBERG
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