From 243fa169c16e9f250b98839543fb5c7385b12793 Mon Sep 17 00:00:00 2001
From: Gretta Hohl <gretta.hohl@ebeesmarttechnologies.de>
Date: Wed, 7 Dec 2016 12:22:18 +0100
Subject: [PATCH] Fix Connection timeout from issue #367

---
 src/modbus-rtu.c | 51 ++++++++++++++++++++++++++++++++++++++++++++++++
 src/modbus-rtu.h |  3 +++
 2 files changed, 54 insertions(+)

diff --git a/src/modbus-rtu.c b/src/modbus-rtu.c
index 81edccd04..5e82307c1 100644
--- a/src/modbus-rtu.c
+++ b/src/modbus-rtu.c
@@ -1104,6 +1104,57 @@ int modbus_rtu_set_rts_delay(modbus_t *ctx, int us)
     }
 }
 
+
+int modbus_rtu_get_onebyte_timey(modbus_t *ctx)
+{
+    if (ctx == NULL) {
+        errno = EINVAL;
+        return -1;
+    }
+
+    if (ctx->backend->backend_type == _MODBUS_BACKEND_TYPE_RTU) {
+#if HAVE_DECL_TIOCM_RTS
+        modbus_rtu_t *ctx_rtu;
+        ctx_rtu = (modbus_rtu_t *)ctx->backend_data;
+        return ctx_rtu->onebyte_time;
+#else
+        if (ctx->debug) {
+            fprintf(stderr, "This function isn't supported on your platform\n");
+        }
+        errno = ENOTSUP;
+        return -1;
+#endif
+    } else {
+        errno = EINVAL;
+        return -1;
+    }
+}
+
+int modbus_rtu_set_onebyte_time(modbus_t *ctx, int us){
+    if (ctx == NULL || us < 0) {
+        errno = EINVAL;
+        return -1;
+    }
+
+    if (ctx->backend->backend_type == _MODBUS_BACKEND_TYPE_RTU) {
+#if HAVE_DECL_TIOCM_RTS
+        modbus_rtu_t *ctx_rtu;
+        ctx_rtu = (modbus_rtu_t *)ctx->backend_data;
+        ctx_rtu->onebyte_time = us;
+        return 0;
+#else
+        if (ctx->debug) {
+            fprintf(stderr, "This function isn't supported on your platform\n");
+        }
+        errno = ENOTSUP;
+        return -1;
+#endif
+    } else {
+        errno = EINVAL;
+        return -1;
+    }
+}
+
 static void _modbus_rtu_close(modbus_t *ctx)
 {
     /* Restore line settings and close file descriptor in RTU mode */
diff --git a/src/modbus-rtu.h b/src/modbus-rtu.h
index 214a888b7..e782b2dd4 100644
--- a/src/modbus-rtu.h
+++ b/src/modbus-rtu.h
@@ -37,6 +37,9 @@ MODBUS_API int modbus_rtu_set_custom_rts(modbus_t *ctx, void (*set_rts) (modbus_
 MODBUS_API int modbus_rtu_set_rts_delay(modbus_t *ctx, int us);
 MODBUS_API int modbus_rtu_get_rts_delay(modbus_t *ctx);
 
+MODBUS_API int modbus_rtu_set_onebyte_time(modbus_t *ctx, int us);
+MODBUS_API int modbus_rtu_get_onebyte_time(modbus_t *ctx);
+
 MODBUS_END_DECLS
 
 #endif /* MODBUS_RTU_H */