From 58fd2654a387fda7739f071fd86fb11fb21da545 Mon Sep 17 00:00:00 2001
From: mstroh76 <m.stroh76@gmail.com>
Date: Fri, 26 Apr 2024 17:45:12 +0200
Subject: [PATCH] #219 report /dev/gpiochip support

---
 gpio/gpio.c         | 8 ++++++--
 wiringPi/wiringPi.h | 1 +
 2 files changed, 7 insertions(+), 2 deletions(-)

diff --git a/gpio/gpio.c b/gpio/gpio.c
index 1e7ec59..fb2da2f 100644
--- a/gpio/gpio.c
+++ b/gpio/gpio.c
@@ -1363,7 +1363,7 @@ static void doVersion (char *argv [])
       piModelNames [model], piRevisionNames [rev], piMemorySize [mem], piMakerNames [maker], warranty ? "[Out of Warranty]" : "") ;
 
 // Check for device tree
-  printf ("System details:\n") ;
+  printf ("\nSystem details:\n") ;
   if (stat ("/proc/device-tree", &statBuf) == 0) {	// We're on a devtree system ...
     printf ("  * Device tree present.\n") ;
   }
@@ -1394,9 +1394,13 @@ static void doVersion (char *argv [])
   } else  {
         printf ("  * Does not support basic user-level GPIO access via /dev/gpiomem.\n") ;
     if(0==bGlobalAccess) {
-        printf ("  * root or sudo may be required for GPIO access.\n") ;
+        printf ("  * root or sudo may be required for direct GPIO access.\n") ;
     }
   }
+  if (GetChipFd()>0) {
+    printf ("  * Supports basic user-level GPIO access via /dev/gpiochip (slow).\n") ;
+  }
+
 }
 
 
diff --git a/wiringPi/wiringPi.h b/wiringPi/wiringPi.h
index 029b6bb..81c4001 100644
--- a/wiringPi/wiringPi.h
+++ b/wiringPi/wiringPi.h
@@ -218,6 +218,7 @@ extern int  wiringPiSetupGpio   (void) ;
 extern int  wiringPiSetupPhys   (void) ;
 extern int  wiringPiSetupGpioDevice(void) ;        //Interface 3.3
 
+extern          int  GetChipFd           ();
 extern          void pinModeAlt          (int pin, int mode) ;
 extern          void pinMode             (int pin, int mode) ;
 extern          void pullUpDnControl     (int pin, int pud) ;