From: Soeren Apel <soeren@apelpie.net>
Date: Fri, 10 Aug 2018 21:28:22 +0000 (+0200)
Subject: MainBar: Fix warning message introduced by bc4b9ccfc78d9d0
X-Git-Url: http://git.code-monkey.de/?p=pulseview.git;a=commitdiff_plain;h=c78081004d8d7c6440358ccbf9278826a0fdb568

MainBar: Fix warning message introduced by bc4b9ccfc78d9d0

"sr: hwdriver: Option 'external_clock' not available for this device instance."
Avoid this message by checking if the EXTERNAL_CLOCK property is actually
supplied by the driver.
---

diff --git a/pv/toolbars/mainbar.cpp b/pv/toolbars/mainbar.cpp
index 1688862..b9eda07 100644
--- a/pv/toolbars/mainbar.cpp
+++ b/pv/toolbars/mainbar.cpp
@@ -302,17 +302,20 @@ void MainBar::update_sample_rate_selector()
 
 	const shared_ptr<sigrok::Device> sr_dev = device->device();
 
-	try {
-		auto gvar = sr_dev->config_get(ConfigKey::EXTERNAL_CLOCK);
-		if (gvar.gobj()) {
-			bool value = Glib::VariantBase::cast_dynamic<Glib::Variant<bool>>(
-				gvar).get();
-			sample_rate_.allow_user_entered_values(value);
+	if (sr_dev->config_check(ConfigKey::EXTERNAL_CLOCK, Capability::GET)) {
+		try {
+			auto gvar = sr_dev->config_get(ConfigKey::EXTERNAL_CLOCK);
+			if (gvar.gobj()) {
+				bool value = Glib::VariantBase::cast_dynamic<Glib::Variant<bool>>(
+					gvar).get();
+				sample_rate_.allow_user_entered_values(value);
+			}
+		} catch (Error& error) {
+			// Do nothing
 		}
-	} catch (Error& error) {
-		// Do nothing
 	}
 
+
 	if (sr_dev->config_check(ConfigKey::SAMPLERATE, Capability::LIST)) {
 		try {
 			gvar_dict = sr_dev->config_list(ConfigKey::SAMPLERATE);