icarus report err on read failure
diff --git a/driver-icarus.c b/driver-icarus.c
index b11b66d..5515356 100644
--- a/driver-icarus.c
+++ b/driver-icarus.c
@@ -353,7 +353,8 @@ static int icarus_get_nonce(struct cgpu_info *icarus, unsigned char *buf, struct
err = usb_read_timeout(icarus, (char *)buf, read_amount, &amt, ICARUS_WAIT_TIMEOUT, C_GETRESULTS);
cgtime(&read_finish);
if (err < 0 && err != LIBUSB_ERROR_TIMEOUT) {
- applog(LOG_ERR, "%s%i: Comms error", icarus->drv->name, icarus->device_id);
+ applog(LOG_ERR, "%s%i: Comms error (err=%d amt=%d)",
+ icarus->drv->name, icarus->device_id, err, amt);
dev_error(icarus, REASON_DEV_COMMS_ERROR);
return ICA_NONCE_ERROR;
}