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-rw-r--r--sys/dev/usb/urio.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/sys/dev/usb/urio.c b/sys/dev/usb/urio.c
index 57979cd..eaec4e5 100644
--- a/sys/dev/usb/urio.c
+++ b/sys/dev/usb/urio.c
@@ -117,6 +117,8 @@ d_ioctl_t urioioctl;
Static struct cdevsw urio_cdevsw = {
+ .d_version = D_VERSION,
+ .d_flags = D_NEEDGIANT,
.d_open = urioopen,
.d_close = urioclose,
.d_read = urioread,
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