On Monday 25 April 2005 06:27, Anderson Lizardo wrote: > Gerhard Jaeger wrote: > > first try and use the sanei_pp_outb_data function. if this does not work, > > extend the sanei_pp lib by the needed functionality. > > Tested, and it didn't work ;). Attached a (fairly simple) patch that > adds the "sanei_pp_outb_epp" function. > > Now I have geniusvp2 using sanei_pp and (hopefully) portable. I've > noticed some performance loss though, if compared to the old ppdev code. > I'm not sure if it's because the sanei_pp have "one-byte-per-call" > functions only (and in fact I had to implement a loop on my code so I > can write multiple bytes) or if it's overhead of the libieee1284 library > itself. > > > Don't use the libieee directly! > > I'm not sure why not. Is it for better portability? > > > AFAIR epp_write_data will be called inside the libieee, when the port > > is set to EPP mode! In the end, write data for SPP/EPP should be the > > same function, as they use the same port! > > AFAIK, SPP data port is base+0 while EPP data port is base+4, and in EPP > mode both are accessible, so when I tried to use sanei_pp_outb_data > function I suppose it was trying to write to base+0.
Oh man, of course you're right, I missed that somehow :( I have applied your patch and extended, so that the sanei_pp could be used without libieee, simply by using in/out stuff, at least on a x86 machine. Please, if you need more functionality, i.e. bulk read/write, extend the lib and send a patch. But please don't forget the non-libieee code! Gerhard >
