spi com if almost finished

linux/utility/errorhandling.h

@@ -0,0 +1,30 @@
+#ifndef LINUX_UTILITY_ERRORHANDLING_H_
+#define LINUX_UTILITY_ERRORHANDLING_H_
+
+#include <cerrno>
+#include <cstring>
+#include <fsfw/serviceinterface/ServiceInterface.h>
+
+namespace utility {
+
+void handleIoctlError(const char* const customPrintout) {
+#if FSFW_VERBOSE_LEVEL >= 1
+#if FSFW_CPP_OSTREAM_ENABLED == 1
+    if(customPrintout != nullptr) {
+        sif::warning << customPrintout << std::endl;
+    }
+    sif::warning << "handleIoctlError: Error code " << errno << ", "<< strerror(errno) <<
+            std::endl;
+#else
+    if(customPrintout != nullptr) {
+        sif::printWarning("%s\n", customPrintout);
+    }
+    sif::printWarning("handleIoctlError: Error code %d, %s\n", errno, strerror(errno));
+#endif /* FSFW_CPP_OSTREAM_ENABLED == 1 */
+#endif /* FSFW_VERBOSE_LEVEL >= 1 */
+
+}
+
+}
+
+#endif /* LINUX_UTILITY_ERRORHANDLING_H_ */