Hi again! So I tried to load the following modules: i2c_core, i2c_algo_bit, i2c_pport, i2c_dev, i2c_sensor, pcf8574. Should I be able to se my pcf8574 chip that is hooked up on my parallel port now? Cause I can not! Do I have to consider cables (length and others) or have I done anything else wrong? Some hints on trouble shooting would be apreciated. Thanks. /Andreas > Hi Andreas, > >> Must confess that I am a little confused though, and the more I read >> the more insecure I get. Seems like Jean boiled the paralell port >> drivers (5) together some day back in 2003? Is that correct? What >> actually happened with the different access modes? Exactly what >> modules do I need to load to get my parallell port lines to speak i2c? > > My unified i2c-parport driver handles all i2c-over-parallel-port devices > *except* the ones which have no electronics needed, which are handled by > i2c-pport (not in the kernel tree yet) which you just compiled. So go > with i2c-pport and don't use i2c-parport. > > Providing that your pin wiring is correct, you should now be able to > drive whatever chip you connected to your bus using any of the various > chip drivers we have. Or you can test the bus using the i2cdetect > userspace tool. Or you can write your own userspace tool to have the i2c > bus do whatever you want. Which chips do you plan to connect on that > bus, BTW? > > -- > Jean Delvare >
