Re: [libdc1394-devel] _dc1394_basic_format7_setup & min_bytes

[Ralf E. <reb...@us...>]

--On Montag, 15. September 2003 15:01 +0200 Damien Douxchamps 
<d.d...@te...> wrote:

> On Mon, 2003-09-15 at 14:42, Ralf Ebeling wrote:
>
>> For now this should be Ok. But I fear for most cameras UnitBytePerPacket
>> won't be the minimum allowed packet size (especially with the TI Link-
>> Layer controller - limited to 4095 packets per iso transfer).
>
> Do you think we should allow bpp < UnitBytePerPacket? It's not very
> difficult to add this possibility, but it surely breaks IIDC rules...

No. IMHO bpp > UnitBytePerPacket, because of the limits with the
TI LLC.

I guess most cameras use UnitBytePerPacket as the allowed increment
of bpp and not as the allowed min bpp... mainly if UnitBytePerPacket
is lower than 16... but I don't know all cameras...

But for now 'bpp % UnitBytePerPacket == 0 && bpp >= UnitBytePerPacket'
should work, if the user is aware of a possible limit of PacketsPerFrame.

Ralf