Re: Hardware API for CommonC++

[Marc Boris Dürner]

On Monday 08 December 2003 20:59, you wrote: 
> I think it would be very interesting, and I could see several places and 
> possible projects I would use something like this already, so yes, I think

> it could be a very good addition.  How portable is this?  Is it very 
> specific GNU/Linux, or can it be used/easily adapted for use with other 
> operating systems and kernels, such FreeBSD for example? 
 
I see it as a backend for freedesktop.org's HAL, which has to get away from
ugly C  ;) 
 
It should be fairly portable. The PCI and USB stuff comes with its own
parser for the 
configuration registers for example, so in theory all you have to do is
point them to 
wherever the registers reside. Sometimes you may get them with an ioctl() or
from a FS 
like procfs. I am going to write a parser for pcmcia too, but the specs seem
not to be 
openly accessible. I could only get the usb and pci specs for free. however
there is parsing 
code from the linux kernel I have seen and could modify. It might even be
portable 
without a pcmcia parser since the most Unix-like OS`es are similar in how to
get the data 
from the pcmcia configuration space. 
 
As for implementing the iostreams it will be as difficult as say libusb,
which wraps up the 
different API`s. I (we) have to make a descision how to implement them. I
was a bit 
reluctant to use too many C++ features in the beginning, as I dreamt of
having it in 
EmbeddedC++ and maybe include driver/kernel stuff one day, but I have given
up on this 
dream, since the current political situtation, at least in the linux world,
will prevent any nice 
C++ interfaces in the kernel in the foreseeable future. 
 
Its not meant to be GNU/Linux specific. I would certainly appreciate help
from the BSD and 
Hurd people and I try as hard as I can to stay away from any linux-isms. 
 
Are there any other modules planned for CommonC++? I have never heard of it
before, 
even though it packages a lot of very useful stuff. What are the other plany
for the future? 
Modularisation maybe? 
 
regards, 
Marc 

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