Add delay between attempts

1 files changed, 6 insertions, 0 deletions

diff --git a/serial.c b/serial.c
index 5f7548c..82a5abd 100644
--- a/serial.c
+++ b/serial.c
@@ -206,6 +206,9 @@ read_buf(int fd, size_t len, void *_buf)
         } else {
             write_ack(fd, NACK);
         }
+
+        /* Wait 2 ms between attempts */
+        usleep(2000);
     }
 
     err = ERR_NACK;
@@ -249,6 +252,9 @@ write_buf(int fd, size_t len, const void *_buf)
 
         if (err != NACK)
             goto error;
+
+        /* Wait 2 ms between attempts */
+        usleep(2000);
     }
 
 error: