1 files changed, 8 insertions, 0 deletions
diff --git a/Inc/devices.h b/Inc/devices.h
index 3b54580..396ae2d 100644
--- a/Inc/devices.h
+++ b/Inc/devices.h
@@ -29,5 +29,13 @@ typedef enum hs_status {
     HS_FAILED = 5
 } hs_status_t;
 
+typedef enum state {
+    OFFLINE     = 0,   /* Device not found on bus */
+    CONNECTED   = 1,   /* Device found on bus but handshake not completed */
+    REGISTERED  = 2,   /* Completed handshake; ready for action */
+    HS_FAILED   = 3,   /* Handshake failed */
+    NO_DATA     = 4    /* ??? */
+} state_t;
+
 /* Handshake message size definitions */
 #define MDR_req_buf_len 2