Adjust the bxf sleep time according to the number of chips detected
diff --git a/driver-bitfury.c b/driver-bitfury.c
index 5c5fd61..975179e 100644
--- a/driver-bitfury.c
+++ b/driver-bitfury.c
@@ -1226,7 +1226,7 @@ static int64_t bxf_scan(struct cgpu_info *bitfury, struct bitfury_info *info)
int aged;
bxf_update_work(bitfury, info);
- cgsleep_ms(600);
+ cgsleep_ms(1200 / info->chips);
mutex_lock(&info->lock);
ret = bitfury_rate(info);