+int parse_user_event(struct discover_context *ctx, struct event *event);
+
+/* File IO functions for parsers; these should be the only interface that
+ * parsers use to access a device's filesystem.
+ *
+ * These are intended for small amounts of data, typically text configuration
+ * and state files.
+ */
+int parser_request_file(struct discover_context *ctx,
+ struct discover_device *dev, const char *filename,
+ char **buf, int *len);
+int parser_replace_file(struct discover_context *ctx,
+ struct discover_device *dev, const char *filename,
+ char *buf, int len);
+int parser_request_url(struct discover_context *ctx, struct pb_url *url,
+ char **buf, int *len);
+int parser_check_dir(struct discover_context *ctx,
+ struct discover_device *dev, const char *dirname);