Messages in this thread | | | Date | Wed, 07 Mar 2007 14:53:31 +1100 | From | Ben Nizette <> | Subject | Re: passing function pointers through platform devices? |
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NZG wrote: > I'm developing an SPI- bus >MMC/SD block driver translation layer. > As part of this layer the write protect and card detect lines need to be read. > The method for determining the state of these lines will be board specific. > > Is it appropriate to pass a function pointer through a platform device > (declared in the mach initialization) to implement card_available and > write_protect function calls? > Or is there a cleaner way to do it?
Once the generic GPIO framework migrates upstream from -mm you should just pass the GPIO token from board-specific code and gpio_get_value() it.
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