From: Martin Ling <redacted>
Date: Sun, 4 May 2014 23:38:58 +0000 (+0100)
Subject: rigol-ds: Quick hack to fix bug #354.
X-Git-Tag: libsigrok-0.3.0~5
X-Git-Url: https://sigrok.org/gitaction?a=commitdiff_plain;h=05238d2830c1cc2217d9e2c6d64203914e7fa95b;p=libsigrok.git

rigol-ds: Quick hack to fix bug #354.
---

diff --git a/hardware/rigol-ds/api.c b/hardware/rigol-ds/api.c
index 492b05ff..46500104 100644
--- a/hardware/rigol-ds/api.c
+++ b/hardware/rigol-ds/api.c
@@ -272,8 +272,13 @@ static struct sr_dev_inst *probe_device(struct sr_scpi_dev_inst *scpi)
 	gchar *channel_name, **version;
 
 	if (sr_scpi_get_hw_id(scpi, &hw_info) != SR_OK) {
-		sr_info("Couldn't get IDN response.");
-		return NULL;
+		sr_info("Couldn't get IDN response, retrying.");
+		sr_scpi_close(scpi);
+		sr_scpi_open(scpi);
+		if (sr_scpi_get_hw_id(scpi, &hw_info) != SR_OK) {
+			sr_info("Couldn't get IDN response.");
+			return NULL;
+		}
 	}
 
 	for (i = 0; i < ARRAY_SIZE(supported_models); i++) {