Serial Number

David Henderson dhenderson at digital-pipe.com
Fri May 6 16:35:28 UTC 2011


On 05/06/2011 11:19 AM, Harald Becker wrote:
>   Hallo David!
>
>>      I'm trying to use mdev to create some unique device file names and
>> would like to use the obvious choice of a serial number, however, that
>> information doesn't appear in any of the env output from mdev.  Does
>> anyone know of a way to obtain this information via mdev?  I've also
>> looked at hdparm, but it doesn't appear to work with USB drives and I
>> need a universal solution.  Any help would greatly be appreciated.
> Can you give some examples on how you want your devices named?
>
> I formerly used a script called from mdev and used small regular files
> stored on the temporary device file system (in a subdirectory) to hold
> counts and other name informations. Indeed not the nicest approach, but
> works fast and reliable.
>
> --
> Harald
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Hey Harald, thanks for the reply.  If I can gain access to the serial 
numbers of the drive, I'd just create a symlink with that being the name 
of the file.  In the absence of a serial number (since it's not 
detectable in all scenarios), I'd probably default to some other types 
of info (e.g. manufacturer, model #, etc).  Perhaps a peek into your 
file might help as I'm also using mdev to call an external script for 
processing.

Dave


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