sysfs: create __ATTR_WO()
This creates the macro __ATTR_WO() for write-only attributes, instead of having to "open define" them. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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@ -80,6 +80,11 @@ struct attribute_group {
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.show = _name##_show, \
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}
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#define __ATTR_WO(_name) { \
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.attr = { .name = __stringify(_name), .mode = S_IWUSR }, \
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.store = _name##_store, \
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}
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#define __ATTR_RW(_name) __ATTR(_name, (S_IWUSR | S_IRUGO), \
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_name##_show, _name##_store)
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