Reading configuration file from driver during load

Gireesh gireesh.nagabhushana at neterion.com
Tue Sep 19 07:24:44 PDT 2006




Oliver Fromme wrote:
> 
> Gireesh wrote:
>  > I have a driver which has some parameters hardcoded as of now. It
> requires
>  > values of these parameters to be available during load (during attach
>  > function). My requirement is to read these parameters from a
> configuration
>  > file so that we can load driver with different values to parameters
> without
>  > rebuilding driver. 
> 
> I think that sysctl or kenv variables are best suited for
> that purpose.  There are a lot of examples for that in
> existing drivers.
> 
> Best regards
>    Oliver
> 
> -- 
> Oliver Fromme,  secnetix GmbH & Co. KG, Marktplatz 29, 85567 Grafing
> Dienstleistungen mit Schwerpunkt FreeBSD: http://www.secnetix.de/bsd
> Any opinions expressed in this message may be personal to the author
> and may not necessarily reflect the opinions of secnetix in any way.
> 
> We're sysadmins.  To us, data is a protocol-overhead.
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> 

Thanks Oliver for your reply.
We can use sysctls. But we should have created those sysctl entries before
loading
driver. Otherwise, we have to use a kernel module to create those entries.
Do we have any way of avoiding this?

Thanks,
Gireesh
-- 
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