Add debug output saying what frame command is being sent in hfa driver.
diff --git a/driver-hashfast.c b/driver-hashfast.c
index dd2c219..5a0341c 100644
--- a/driver-hashfast.c
+++ b/driver-hashfast.c
@@ -119,6 +119,7 @@ static bool hfa_send_frame(struct cgpu_info *hashfast, uint8_t opcode, uint16_t
memcpy(&packet[sizeof(struct hf_header)], data, len);
tx_length = sizeof(struct hf_header) + len;
+ applog(LOG_DEBUG, "HFA %d: Sending %s frame", hashfast->device_id, hfa_cmds[opcode].cmd_name);
ret = usb_write(hashfast, (char *)packet, tx_length, &amount,
hfa_cmds[opcode].usb_cmd);
if (unlikely(ret < 0 || amount != tx_length)) {