From: Joel Holdsworth <joel@airwebreathe.org.uk>
Date: Mon, 5 Jan 2015 20:10:44 +0000 (+0000)
Subject: SamplingBar: Handle a failure to list the SAMPLERATE key
X-Git-Url: http://git.code-monkey.de/?p=pulseview.git;a=commitdiff_plain;h=c2db8ec3890e004455a55a493968d02a24a97242

SamplingBar: Handle a failure to list the SAMPLERATE key

This fixes #529
---

diff --git a/pv/toolbars/samplingbar.cpp b/pv/toolbars/samplingbar.cpp
index 7ee4d98..8c1b3c6 100644
--- a/pv/toolbars/samplingbar.cpp
+++ b/pv/toolbars/samplingbar.cpp
@@ -183,8 +183,17 @@ void SamplingBar::update_sample_rate_selector()
 	const auto iter = keys.find(ConfigKey::SAMPLERATE);
 	if (iter != keys.end() &&
 		(*iter).second.find(sigrok::LIST) != (*iter).second.end()) {
-		gvar_dict = device->config_list(ConfigKey::SAMPLERATE);
-	} else {
+		const auto keys = device->config_keys(
+			ConfigKey::DEVICE_OPTIONS);
+		try {
+			gvar_dict = device->config_list(ConfigKey::SAMPLERATE);
+		} catch(const sigrok::Error &e) {
+			// Failed to enunmerate samplerate
+			(void)e;
+		}
+	}
+
+	if (!gvar_dict) {
 		sample_rate_.show_none();
 		updating_sample_rate_ = false;
 		return;