X-Git-Url: https://sigrok.org/gitweb/?a=blobdiff_plain;f=hardware%2Fchronovu-la%2Fapi.c;h=b232a10b966a3b31964a43308167a130a5006edb;hb=6f64ebb22306d1436becd9da4fb3761c99462810;hp=d258d370054a4745b6d1db70c818faf3b28a86e0;hpb=38d32464973b828bf327b9271ef4b0437d85c9f2;p=libsigrok.git

diff --git a/hardware/chronovu-la/api.c b/hardware/chronovu-la/api.c
index d258d370..b232a10b 100644
--- a/hardware/chronovu-la/api.c
+++ b/hardware/chronovu-la/api.c
@@ -168,8 +168,12 @@ static GSList *scan(GSList *options)
 	for (i = 0; i < ARRAY_SIZE(vid_pid); i++) {
 		ret = ftdi_usb_open_desc(ftdic, vid_pid[i].vid,
 			vid_pid[i].pid, vid_pid[i].iproduct, NULL);
+		/* Show errors other than "device not found". */
+		if (ret < 0 && ret != -3)
+			sr_dbg("Error finding/opening device (%d): %s.",
+			       ret, ftdi_get_error_string(ftdic));
 		if (ret < 0)
-			continue; /* No device found. */
+			continue; /* No device found, or not usable. */
 
 		sr_dbg("Found %s device (%04x:%04x).",
 		       vid_pid[i].iproduct, vid_pid[i].vid, vid_pid[i].pid);