Try one more time to get the hfa header on init since it can take 2 seconds for all 3 boards on a sierra.
diff --git a/driver-hashfast.c b/driver-hashfast.c
index e019a55..3050067 100644
--- a/driver-hashfast.c
+++ b/driver-hashfast.c
@@ -329,7 +329,7 @@ resend:
// We extend the normal timeout - a complete device initialization, including
// bringing power supplies up from standby, etc., can take over a second.
tryagain:
- for (i = 0; i < 3; i++) {
+ for (i = 0; i < 4; i++) {
ret = hfa_get_header(hashfast, h, &hcrc);
if (unlikely(hashfast->usbinfo.nodev))
return false;