Merge pull request #116 from RoboSchmied/RoboSchmied-i2cdetect

include last byte in i2cdetect output
OpenIPC · Mar 18, 2024 · 8e41e80 · 8e41e80
2 parents cc2849e + a006247
commit 8e41e80
Showing 1 changed file with 5 additions and 2 deletions.
diff --git a/src/i2cspi.c b/src/i2cspi.c
@@ -200,7 +200,9 @@ static int i2cdetect(int argc, char **argv, bool script_mode) {
     unsigned char i2c_addr;
 
     printf("       0  1  2  3  4  5  6  7   8  9  a  b  c  d  e  f\n");
-    for (i2c_addr = 0x0; i2c_addr < 0xff; ++i2c_addr) {
+    i2c_addr = 0xff;  // will be 0x00 after first increment
+    do {
+        ++i2c_addr;
         int fd = prepare_i2c_sensor(i2c_addr);
         int res = i2c_read_register(fd, i2c_addr, 0, SELECT_WIDE(0), 1);
 
@@ -221,7 +223,8 @@ static int i2cdetect(int argc, char **argv, bool script_mode) {
 
         close_sensor_fd(fd);
         hal_cleanup();
-    }
+    } while (i2c_addr != 0xff);
+
     printf("\n");
 
     return EXIT_SUCCESS;