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-rw-r--r--sys/dev/sio/sio.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/sys/dev/sio/sio.c b/sys/dev/sio/sio.c
index 6157ebb..5f1a690 100644
--- a/sys/dev/sio/sio.c
+++ b/sys/dev/sio/sio.c
@@ -370,7 +370,7 @@ sysctl_machdep_comdefaultrate(SYSCTL_HANDLER_ARGS)
SYSCTL_PROC(_machdep, OID_AUTO, conspeed, CTLTYPE_INT | CTLFLAG_RW,
0, 0, sysctl_machdep_comdefaultrate, "I", "");
-/* TUNABLE_INT("machdep.conspeed", &comdefaultrate); */
+TUNABLE_INT("machdep.conspeed", __DEVOLATILE(int *, &comdefaultrate));
#define SET_FLAG(dev, bit) device_set_flags(dev, device_get_flags(dev) | (bit))
#define CLR_FLAG(dev, bit) device_set_flags(dev, device_get_flags(dev) & ~(bit))
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