v4l2-dbg: report fail reason to the user

Commit Message

Németh Márton Nov. 8, 2009, 12:32 p.m. UTC

None

Patch

diff -r 19c0469c02c3 v4l2-apps/util/v4l2-dbg.cpp
--- a/v4l2-apps/util/v4l2-dbg.cpp	Sat Nov 07 15:51:01 2009 -0200
+++ b/v4l2-apps/util/v4l2-dbg.cpp	Sun Nov 08 14:13:52 2009 +0100
@@ -354,13 +354,14 @@ 
 {
 	int retVal;

-	if (!options[OptVerbose]) return ioctl(fd, request, parm);
 	retVal = ioctl(fd, request, parm);
-	printf("%s: ", name);
-	if (retVal < 0)
-		printf("failed: %s\n", strerror(errno));
-	else
-		printf("ok\n");
+	if (options[OptVerbose]) {
+		printf("%s: ", name);
+		if (retVal < 0)
+			printf("failed: %s\n", strerror(errno));
+		else
+			printf("ok\n");
+	}

 	return retVal;
 }
@@ -586,8 +587,9 @@ 

 				printf(" set to 0x%llx\n", set_reg.val);
 			} else {
-				printf("Failed to set register 0x%08llx value 0x%llx\n",
-					set_reg.reg, set_reg.val);
+				printf("Failed to set register 0x%08llx value 0x%llx: "
+					"%s\n",
+					set_reg.reg, set_reg.val, strerror(errno));
 			}
 			set_reg.reg++;
 		}