From ced237ba5329df4141a78f452feb857ed2df2bbb Mon Sep 17 00:00:00 2001
From: MCUdude <hansibull@gmail.com>
Date: Thu, 1 May 2025 23:16:46 +0200
Subject: [PATCH] Force reset pin high for 100ms before the prog. session

---
 src/linuxgpio.c | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/src/linuxgpio.c b/src/linuxgpio.c
index 0a894de7..c408138c 100644
--- a/src/linuxgpio.c
+++ b/src/linuxgpio.c
@@ -292,6 +292,15 @@ static int linuxgpio_sysfs_open(PROGRAMMER *pgm, const char *port) {
     }
   }
 
+  // Set RESET pin high for 100ms before starting the programming session.
+  // This makes sure the target is in a known "good" condition before
+  // pulling the reset line down and starting the programming session
+  int reset_pin = pgm->pinno[PIN_AVR_RESET] & PIN_MASK;
+  if(reset_pin <= PIN_MAX && my.sysfs_fds[reset_pin] >= 0) {
+    pgm->setpin(pgm, reset_pin, 1);
+    usleep(GPIO_SYSFS_OPEN_DELAY);
+  }
+
   return (0);
 }