Hi
I need a inflormation regd,
How to handle NVRAM data in rtlinux ?
I don't have any idea about linux regd NVram data.
Could u pls any one help me in this regd.
How i can proceed futhur to maintain NV ram data in rtlinux environ ment.
thanks
chandu
-----Original Message-----
From: David Olofson [mailto:[EMAIL PROTECTED]]
Sent: Tuesday, October 23, 2001 11:27 PM
To: [EMAIL PROTECTED]
Subject: Re: [rtl] Named Semaphores
On Wednesday 24 October 2001 01:29, Massimiliano Cialdi wrote:
> "Thamm, Russell" wrote:
> > I want to use semaphores for communication between 2 realtime
> > processes.
> >
> > The obvious choice is to use named semaphores but RtLinux doesn't
> > seem to support
> > sem_open (despite what the doco says).
> >
> > Does RtLinux support named semaphores?
> >
> > If not, how are two separate processes able to get a reference to the
> > same semaphore?
>
> I have the same problem: I need to synchronize two process (in two
> separate modules) using the same semaphore.
Actually, the answer lies in the fact that the "processes" are actually
*threads* - even if started from separate modules. That is, they can
share variables as if they were threads of a "normal" process. References
are resolved through the kernel symbol table as modules are loaded.
Of course, for a symbol reference to be resolved, someone must first
export it to the symbol table. Either have one of the modules handle the
instance, while the other(s) just reference it, or create a dedicated
"globals.o" module to put shared stuff in.
//David Olofson --- Programmer, Reologica Instruments AB
.- M A I A -------------------------------------------------.
| Multimedia Application Integration Architecture |
| A Free/Open Source Plugin API for Professional Multimedia |
`----------------------------> http://www.linuxdj.com/maia -'
.- David Olofson -------------------------------------------.
| Audio Hacker - Open Source Advocate - Singer - Songwriter |
`-------------------------------------> http://olofson.net -'
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