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由 Irina Tirdea 提交于
For some events (e.g.: step detector) a direction does not make sense. Add IIO_EV_DIR_NONE to be used with such events and generate sysfs event attributes that do not contain direction. Signed-off-by: NIrina Tirdea <irina.tirdea@intel.com> Signed-off-by: NDaniel Baluta <daniel.baluta@intel.com> Signed-off-by: NJonathan Cameron <jic23@kernel.org>
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