This doesn't mean that you can't write to /proc. Some entries in there,
I call them entries because they aren't files, can be written to. For
instance, you can type
echo "7" > /proc/parport/0/irq
indicating that the parallel port uses irq 7. This said, most entries can
only be read.
If you would like to use /proc to communicate with a driver, which is
my understanding of your question, then you might want to use the
corresponding entry in /dev. For instance, if you want to dirrectly
communicate with the hard disk's driver, you can use the normal open/read/
write/close on /dev/hdX (I STRONGLY discourage you from doing this with
your hard drive, though). Therefore, try using read/write on the /dev
entry corresponding to your device. This should do it.
Regards.
Henrik Stolpe wrote:
>
> Is there a way to automatically erase the contents of a /PROC entry when it
> has been read?
> As far as I understand the /proc files are written to by the kernel when
> they are read, but if I want to write an alternating value into the /proc
> entry
> when it has been read, is this possible?.
> Is there a way to get the driver to know when the entry has been read other
> than the automatic execution of the read function?
>
> Thankfull for any thoughts! :)
>
> Henrik
>
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--
==============================================
Karim Yaghmour
karym@info.polymtl.ca
Computer Engineer
Ecole Polytechnique de Montreal
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