blobmsg: add support for double

This adds support for double floating point type to make it more JSON
compatible. For type checking it also adds a stub BLOB_ATTR_DOUBLE type.
If necessary, the accessor functions for blob can be added later

Signed-off-by: André Gaul <andre@gaul.io>
Signed-off-by: Felix Fietkau <nbd@nbd.name>

1 files changed, 1 insertions, 0 deletions

diff --git a/blob.h b/blob.h
index 307523d..a092f5d 100644
--- a/blob.h
+++ b/blob.h
@@ -39,6 +39,7 @@ enum {
 	BLOB_ATTR_INT16,
 	BLOB_ATTR_INT32,
 	BLOB_ATTR_INT64,
+	BLOB_ATTR_DOUBLE,
 	BLOB_ATTR_LAST
 };