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@@ -79,6 +79,11 @@ void pdb_config_flash_update(const struct pdb_config *cfg);
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/*
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* Get the first valid configuration strucure. If the flash page is empty,
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* return NULL instead.
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+ *
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+ * The location of the configuration is cached, and the cache is updated when
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+ * pdb_config_flash_erase and pdb_config_flash_update are called. The full
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+ * lookup is only performed the first time this function is called, so there's
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+ * very little penalty to calling it repeatedly.
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*/
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struct pdb_config *pdb_config_flash_read(void);
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