On Thu, Mar 15, 2012 at 07:43:05AM +1100, Marc Reilly wrote: > This adds support for devices with 7 address bits and 25 data bits. > The initial intended user for this are the mc13xxx mfds in spi mode. > (The 25th data bit is actually a dummy bit) > > Signed-off-by: Marc Reilly <marc@xxxxxxxxxxxxxxx> It looks like this should be using the pad_bits parameter, though currently we only actually support pad bytes and integer sized register values. Ugh. We also have some entertainment because this device contains a touchscreen so I imagine you want readback but devices using odd register sizes don't do readback right now. What I think we want to do here is use pad_bits then internally to the API notice that reg_bits + pad_bits is a byte and therefore set up for 8 bit registers and set a new value reg_shift in the map which shifts the register address left, either teaching the register format functions about it or just making a new one. This should work better from a framework point of view.
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