From: Uwe Hermann <redacted>
Date: Sun, 8 Apr 2018 17:47:00 +0000 (+0200)
Subject: usbtmc: Silence some overly verbose log messages.
X-Git-Url: https://sigrok.org/gitweb/?p=libsigrok.git;a=commitdiff_plain;h=23d68466f827fa2f2f9b6c5768353d2f7ceab573

usbtmc: Silence some overly verbose log messages.

These trigger quite often with unrelated devices and confuse people.

  scpi_usbtmc: Failed to get configuration descriptor: LIBUSB_ERROR_NOT_FOUND, ignoring device.
---

diff --git a/src/scpi/scpi_usbtmc_libusb.c b/src/scpi/scpi_usbtmc_libusb.c
index a109703e..dc17c872 100644
--- a/src/scpi/scpi_usbtmc_libusb.c
+++ b/src/scpi/scpi_usbtmc_libusb.c
@@ -138,8 +138,9 @@ static GSList *scpi_usbtmc_libusb_scan(struct drv_context *drvc)
 
 		for (confidx = 0; confidx < des.bNumConfigurations; confidx++) {
 			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));
+				if (ret != LIBUSB_ERROR_NOT_FOUND)
+					sr_dbg("Failed to get configuration descriptor: %s, "
+					       "ignoring device.", libusb_error_name(ret));
 				break;
 			}
 			for (intfidx = 0; intfidx < confdes->bNumInterfaces; intfidx++) {
@@ -310,8 +311,9 @@ static int scpi_usbtmc_libusb_open(struct sr_scpi_dev_inst *scpi)
 
 	for (confidx = 0; confidx < des.bNumConfigurations; confidx++) {
 		if ((ret = libusb_get_config_descriptor(dev, confidx, &confdes)) < 0) {
-			sr_dbg("Failed to get configuration descriptor: %s, "
-			       "ignoring device.", libusb_error_name(ret));
+			if (ret != LIBUSB_ERROR_NOT_FOUND)
+				sr_dbg("Failed to get configuration descriptor: %s, "
+				       "ignoring device.", libusb_error_name(ret));
 			continue;
 		}
 		for (intfidx = 0; intfidx < confdes->bNumInterfaces; intfidx++) {