Henri,
One way to do this would be to 
1. Write a C function that will actually read the bytes and populate the C 
    data structure, and return that data structure. 
2. Put this function in your idl file, and CamlIDL will generate the necessary
    code to make the C call *and* do the necessary translation into the Ocaml 
    record.
3. All you then have to do it call the function in Ocaml whenever you'd like to 
    read a packet.

This is pretty neat, and works well in my experience.

Hope this helps.
-shishir



On Sun, 29 Aug 2004 01:00:49 +0200, henri dubois-ferriere
<henridf@gmail.com> wrote:
> Hi,
> I have a little ocaml app which needs to read/write packets from a
> serial device.
> 
> The different packet types are originally defined as c structs and i
> would like to  be able to read the incoming bytes and convert them
> into ocaml records with as much automation as possible.
> 
> Is there any way to automate this process? CamlIDL will automate the
> process of translating the c structs into ml, which is a first step,
> but are there any tools which would allow me to then populate the ml
> record from an incoming set of bytes?
> 
> Any tips/pointers appreciated!
> 
> Henri
> 
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