RE: Using Asyn driver or modifying devLib (or related programs) of EPICSbase for any knid of cPCI cards

[Emmanuel Mayssat <emmanuel_mayssat@lynceantech.com>]

Jenny,

> - The ability to access xPCI cards using memory mapping/register
> access.  I don't know the answer to that, but I assume one can do
> that.
>  

Is your hardware supported on Linux?
If your xPCI card has a low level (kernel level) linux driver, then you
can read/write/etc as the low level driver allows. If the linux driver
is not fully featured (this may be the case if it was written by a 3rd
party instead of the manufacturer), then you may not be able to memory
map it.

As to accessing memory map through EPICS/asyn/etc., that is clearly
possible. ADC and frame grabber work this way. You can even setup shared
memory where for example a process X write while other processes Y,Z,
read. Everything that is possible in C/C++ is possible with EPICS(asyn
and others).

Cheers,

--
Emmanuel