Fix libusb context null problem

tuna · Mar 28, 2022 · 474d40b · 474d40b
1 parent 2b80421
commit 474d40b
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Showing 2 changed files with 4 additions and 1 deletion.
diff --git a/drivers/libusb.h b/drivers/libusb.h
@@ -2,7 +2,7 @@
 #define COMMON_H
 
 #include <libusb.h>
-static libusb_context *context = nullptr;
+extern libusb_context *context;
 
 #endif
 
diff --git a/main.cpp b/main.cpp
@@ -2,9 +2,12 @@
 #include "mainwindow.h"
 #include <QApplication>
 
+libusb_context *context = nullptr;
+
 int main(int argc, char *argv[]) {
  auto rc = libusb_init(&context);
  Q_ASSERT(rc >= 0);
+ Q_ASSERT(context != nullptr);
 
  QCoreApplication::setOrganizationName("TUNA");
  QCoreApplication::setOrganizationDomain("tuna.tsinghua.edu.cn");