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-rw-r--r--core/device.h4
1 files changed, 2 insertions, 2 deletions
diff --git a/core/device.h b/core/device.h
index 9c7fff31c..590609c45 100644
--- a/core/device.h
+++ b/core/device.h
@@ -29,8 +29,8 @@ extern bool device_used_by_selected_dive(const struct device *dev);
extern const struct device *get_device_for_dc(const struct device_table *table, const struct divecomputer *dc);
extern bool device_exists(const struct device_table *table, const struct device *dev);
-extern void add_to_device_table(struct device_table *table, const struct device *dev);
-extern void remove_device(struct device_table *table, const struct device *dev);
+extern int add_to_device_table(struct device_table *table, const struct device *dev); // returns index
+extern int remove_device(struct device_table *table, const struct device *dev); // returns index or -1 if not found
// struct device accessors for C-code. The returned strings are not stable!
const char *device_get_model(const struct device *dev);