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SubjectRe: Driver reading from a file
Date
> 
> Marc,
>
> Thanks for the valuable suggestion! However, passing parameters to the
> driver will not do the work for me. Basically what I am trying to do is to
> set up persistent binding environment for Linux. This happens to Fibre
> Channel world when new device plugged into the loop or Fibric, the existing
> device address could change which leads to target id changes. The persisten
> binding is to preserve all existing device target id unchanged. This
> requires to put existing target id and the coresponding device world wide
> name pair somewhere in a file (or ROM), and be a refernece for the system
> next boot.
>
> If Linux has some system calls to allow driver access from a file during the
> loading process, the solution will be obvious.
>
> Eddie Wang
> Agilent Technologies
> 350-370 West Trimble Road
> MS 90TZ
> San Jose, Ca 95131-1008
> Phone: (408) 435-4213
> Fax: (408) 435-5838

If you want, grab the Interphase 5526 Fibre Channel Driver off of our
Web Site (http://www.iphase.com/~linux) and see the technique I used.
It uses a combination of ioctls and the proc filesystem for feedback.

As you probably know it uses the HP (now Agilent Technologies) Tachyon chip :)

Qlogics drivers typically use onboard Flash Rom for peristent configuration
storage.

--
Mark Veteikis mark@iphase.com 1-214-654-5257
Interphase Corp. 13800 Senlac Dallas Tx. 75234

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