On 09/07/11 18:57, Mark Brown wrote: > On Wed, Sep 07, 2011 at 05:10:24PM +0100, Jonathan Cameron wrote: > > Please fix your mailer to word wrap at less than 80 colums, they're > really quite hard to read as a result of this. > >> CS -_______________________- >> TX Ada0...Ada7 Da0....Da7 >> RX XXXXXXXXXXXXXXXXXXXXXXXXX >> >> Reads are 16 bit with either of the two 8 bit register addresses given the same value >> >> CS -______________________-_____________________- >> TX Ada0....Ada7 XXXXXXXX >> RX XXXXXXXXXXXXXXXXXXXXX Da0...Da7 Db0....Db7 > >> Can interpret Da0...Da7 and Db0....Db7 as single 16 bit register and consider this device >> to just have a weird write method and normal read. Might be easier. I'll define Ax<n> as >> 16 bit address for the burst read. > > This is starting to seem pretty far off the reservation. Indeed. > >> Perhaps the burst mode thing is better handled by just providing a hook to allow data to be pushed >> into regmap (from 'magic' sources), but the weird write read combination looks to me like something >> that makes sense to have in regmap (be it as another bus variant). > > Probably not as a bus, it sounds like a marshalling difference rather > than a bus - the buses should really only understand byte streams. I > don't have any bright ideas on how to deal with this, it's fairly far > away from the problem space I'm worried about. The right answer maybe that it isn't a good idea to do it at all, but it wasn't obvious until I tried! Having done it I'm not sure either way. > -- > To unsubscribe from this list: send the line "unsubscribe linux-iio" in > the body of a message to majordomo@xxxxxxxxxxxxxxx > More majordomo info at http://vger.kernel.org/majordomo-info.html > -- To unsubscribe from this list: send the line "unsubscribe linux-iio" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
