X-Git-Url: https://sigrok.org/gitweb/?a=blobdiff_plain;f=hardware%2Fnorma-dmm%2Fprotocol.h;h=951734e8f99667b7502375e4e0eab500309e9d5d;hb=b5bbc3f1b00d5f3096c6800af4069fb07704d3a9;hp=2ed0e250346d4193fdd98ee12b8e7df8b140f195;hpb=3544f848e0d7f67af8e11ce7ec344b34cd797df3;p=libsigrok.git

diff --git a/hardware/norma-dmm/protocol.h b/hardware/norma-dmm/protocol.h
index 2ed0e250..951734e8 100644
--- a/hardware/norma-dmm/protocol.h
+++ b/hardware/norma-dmm/protocol.h
@@ -29,10 +29,17 @@
 #include "libsigrok.h"
 #include "libsigrok-internal.h"
 
+/** @file
+ *  Norma DM9x0/Siemens B102x DMMs driver.
+ *  @internal
+ */
+
 #define LOG_PREFIX "norma-dmm"
 
 #define NMADMM_BUFSIZE  256
 
+#define NMADMM_TIMEOUT_MS 2000 /**< Request timeout. */
+
 /** Norma DMM request types (used ones only, the DMMs support about 50). */
 enum {
 	NMADMM_REQ_IDN = 0,	/**< Request identity */
@@ -63,6 +70,7 @@ struct dev_context {
 
 	/* Operational state */
 	int last_req;			/**< Last request. */
+	int64_t req_sent_at;		/**< Request sent. */
 	gboolean last_req_pending;	/**< Last request not answered yet. */
 	int lowbatt;			/**< Low battery. 1=low, 2=critical. */