On Wed, Jul 28, 2010 at 03:08:13PM -0300, Mauro Carvalho Chehab wrote: > Em 28-07-2010 14:04, Jon Smirl escreveu: > > On Wed, Jul 28, 2010 at 11:56 AM, Mauro Carvalho Chehab > > <mchehab@xxxxxxxxxx> wrote: > >> Em 28-07-2010 11:41, Jon Smirl escreveu: > >> > >>> It's possible to build a Linux IR decoder engine that can be loaded > >>> with the old LIRC config files. > >> > >> I think it is a good idea to have a decoder that works with such files anyway. > > > > The recorder should use the Linux IR system to record the data. It > > would confusing to mix the systems. Users need to be really sure that > > the standard protocol decoders don't understand their protocol before > > resorting to this. Any one in this situation should post their > > recorded data so we can check for driver implementation errors. > > > > An example: if you use irrecord on Sony remotes lirc always records > > them in raw mode. The true problem here is that irrecord doesn't > > understand that Sony remotes mix different flavors of the Sony > > protocol on a single remote. This leads you to think that the Sony > > protocol engine is broken when it really isn't. It's the irrecord tool > > that is broken. The kernel IR system will decode these remotes > > correctly without resorting to raw mode. > > A decoder like that should be a last-resort decoder, only in the > cases where there's no other option. > > >> There are some good reasons for that, as it would allow in-kernel support for > >> protocols that may have some patent restrictions on a few countries that allow > >> patents on software. > > > > Are there any IR protocols less than 20 (or 17) years old? > > Yes. This protocol is brand new: > https://www.smkusa.com/usa/technologies/qp/ > > And several new devices are starting to accept it. The US patent appears to have been filed in 1995 and granted in 1997, so "brand new" is relative. ;) http://www.freepatentsonline.com/5640160.html We do have a few more years of being encumbered by it here in the US though. :( -- Jarod Wilson jarod@xxxxxxxxxx -- To unsubscribe from this list: send the line "unsubscribe linux-media" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
