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path: root/v4l2-apps/lib/libv4l/libv4l1/log.c
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Diffstat (limited to 'v4l2-apps/lib/libv4l/libv4l1/log.c')
-rw-r--r--v4l2-apps/lib/libv4l/libv4l1/log.c6
1 files changed, 6 insertions, 0 deletions
diff --git a/v4l2-apps/lib/libv4l/libv4l1/log.c b/v4l2-apps/lib/libv4l/libv4l1/log.c
index 74ce0f20b..9ff0cea46 100644
--- a/v4l2-apps/lib/libv4l/libv4l1/log.c
+++ b/v4l2-apps/lib/libv4l/libv4l1/log.c
@@ -66,6 +66,7 @@ static const char *v4l1_ioctls[] = {
void v4l1_log_ioctl(unsigned long int request, void *arg, int result)
{
const char *ioctl_str = "unknown";
+ char buf[40];
if (!v4l1_log_file)
return;
@@ -77,6 +78,11 @@ void v4l1_log_ioctl(unsigned long int request, void *arg, int result)
if (_IOC_TYPE(request) == 'v' && _IOC_NR(request) < ARRAY_SIZE(v4l1_ioctls))
ioctl_str = v4l1_ioctls[_IOC_NR(request)];
+ else {
+ snprintf(buf, sizeof(buf), "unknown request: %c %d\n",
+ (int)_IOC_TYPE(request), (int)_IOC_NR(request));
+ ioctl_str = buf;
+ }
fprintf(v4l1_log_file, "request == %s\n", ioctl_str);