X-Git-Url: https://sigrok.org/gitweb/?a=blobdiff_plain;f=hardware%2Fcommon%2Fscpi_usbtmc_libusb.c;h=933ce83c084e720ead9b002fc369ee1c3d0299a9;hb=9ad05e6cd28e5a4c7cc4f38d2dcb561a14bb5563;hp=c38845439fd04c901a32a482010622490a1a2f91;hpb=d8cbd659ce2e24428c7e403eeebd50ad4a992caa;p=libsigrok.git

diff --git a/hardware/common/scpi_usbtmc_libusb.c b/hardware/common/scpi_usbtmc_libusb.c
index c3884543..933ce83c 100644
--- a/hardware/common/scpi_usbtmc_libusb.c
+++ b/hardware/common/scpi_usbtmc_libusb.c
@@ -116,9 +116,9 @@ static GSList *scpi_usbtmc_libusb_scan(struct drv_context *drvc)
 		}
 
 		for (confidx = 0; confidx < des.bNumConfigurations; confidx++) {
-			if (libusb_get_config_descriptor(devlist[i], confidx, &confdes) < 0) {
-				sr_err("Failed to get configuration descriptor: %s.",
-				       libusb_error_name(ret));
+			if ((ret = libusb_get_config_descriptor(devlist[i], confidx, &confdes)) < 0) {
+				sr_dbg("Failed to get configuration descriptor: %s, "
+				       "ignoring device.", libusb_error_name(ret));
 				break;
 			}
 			for (intfidx = 0; intfidx < confdes->bNumInterfaces; intfidx++) {
@@ -200,9 +200,9 @@ static int scpi_usbtmc_libusb_open(void *priv)
 	}
 
 	for (confidx = 0; confidx < des.bNumConfigurations; confidx++) {
-		if (libusb_get_config_descriptor(dev, confidx, &confdes) < 0) {
-			sr_err("Failed to get configuration descriptor: %s.",
-			       libusb_error_name(ret));
+		if ((ret = libusb_get_config_descriptor(dev, confidx, &confdes)) < 0) {
+			sr_dbg("Failed to get configuration descriptor: %s, "
+			       "ignoring device.", libusb_error_name(ret));
 			continue;
 		}
 		for (intfidx = 0; intfidx < confdes->bNumInterfaces; intfidx++) {