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Michal Suchanek authored
Add checking of SPI transfer errors and return them from read/write functions. Also return the amount of data transferred. Signed-off-by: Michal Suchanek <hramrach@gmail.com> Signed-off-by: Brian Norris <computersforpeace@gmail.com> Acked-by: Michal Suchanek <hramrach@gmail.com> Tested-by: Michal Suchanek <hramrach@gmail.com>
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