Messages in this thread | | | Date | Wed, 10 Apr 2002 20:42:31 +0200 | From | Jan-Benedict Glaw <> | Subject | [RFC] Generic access to firmware environment variables |
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Hi!
I've developed a driver to access environment variables on Alpha computers from userspace through procfs some time ago. These days, I updated the driver. While doing this, I also looked at other architectures; some of them also do have some kind of environment variables in firmware:
Alphas - SRM firmware SGI Workstations - ARCS firmware MIPS/ITE-Boards - PMON m68k/MAC - ?? (info is placed into a "bootinfo" struct) IA64 - (_seems_ to know about environment...)
They all access environment variables either by name, or by an internally handles number. For Alpha, I've (now) implemented both, access by name (if variable name is known/described) and access by generic number.
I think it would be useful to have something like this for other architectures as well. So I'm currently thinking about implementing a base driver (like parport does) and additional modules to implement machine/architecture specific access methode (like parport_pc).
It's easy to code, so what do you think of this?
MfG, JBG
-- Jan-Benedict Glaw . jbglaw@lug-owl.de . +49-172-7608481 -- New APT-Proxy written in shell script -- http://lug-owl.de/~jbglaw/software/ap2/ [unhandled content-type:application/pgp-signature] | |