Johannes Stezenbach wrote:
On Fri, May 19, 2006, Marcel Siegert wrote:
a) don't get any kind of e.g. memcopy problems with new structs and old
kernels after
this patch went in. so the size of e.g. the tuning params for dvb-s2 can
be extended
without having to change the structs size. so also old kernel will
perform a correct
memcopy.
For binary compatibility it isn't sufficient to just add new
fields to struct dvbs2_params. There must also be an indicator
which the kernel can use to see if struct dvb_frontend_params
was prepared by old or new userspace, i.e. if the new fields
are valid or contain uninitialized data.
Well, still i do not follow this argument. How do you expect old
applications that do not support DVB-S2 to work with DVB-S2. Should be
some sort of black magic.
Are you saying that the DVB-S applications will make DVB-S2 devices also
working in the same way ?
I really got lost, now.
Manu
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