add comment about sendcan

1 year ago · ca2ed59a64
parent 6262de4419
commit ca2ed59a64
1 changed files with 1 additions and 0 deletions
--- a/selfdrive/car/car_helpers.py
+++ b/selfdrive/car/car_helpers.py
@ -141,6 +141,7 @@ def fingerprint(logcan, sendcan, num_pandas):
      cached = True
    else:
      cloudlog.warning("Getting VIN & FW versions")
+      # enable OBD multiplexing for Vin query, also allows time for sendcan subscriber to connect
      set_obd_multiplexing(params, True)
      # Vin query only reliably works through OBDII
      vin_rx_addr, vin_rx_bus, vin = get_vin(logcan, sendcan, (0, 1))