From c1dbeb55b4eaa3e0af07eb594147caed5e85f503 Mon Sep 17 00:00:00 2001
From: hathach <thach@tinyusb.org>
Date: Wed, 29 Nov 2023 18:11:50 +0700
Subject: [PATCH] increase intial sleep for port check, otherwise it ccould
 fail on pi4

---
 test/hil/hil_test.py | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/test/hil/hil_test.py b/test/hil/hil_test.py
index c90cf363c..b307a45f6 100644
--- a/test/hil/hil_test.py
+++ b/test/hil/hil_test.py
@@ -65,13 +65,14 @@ def open_serial_dev(port):
         if os.path.exists(port):
             try:
                 # slight delay since kernel may occupy the port briefly
-                time.sleep(0.2)
+                time.sleep(0.5)
+                timeout = timeout - 0.5
                 ser = serial.Serial(port, timeout=1)
                 break
             except serial.SerialException:
                 pass
-        time.sleep(0.8)
-        timeout = timeout - 1
+        time.sleep(0.5)
+        timeout = timeout - 0.5
     assert timeout, 'Device not available or Cannot open port'
     return ser