From afde09e6cc7fc0af499b0dedd7f24eb844d5688f Mon Sep 17 00:00:00 2001
From: "Wladimir J. van der Laan" <laanwj@protonmail.com>
Date: Sat, 22 Feb 2020 13:01:58 +0000
Subject: [PATCH] linux: Don't set VTIME in UART configuration for esptun

`read(esp_fd)` should wait for 1 or more characters to be available in
the UART FIFO, no timing required.
---
 linux/esptun.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/linux/esptun.c b/linux/esptun.c
index e14a60b..d032889 100644
--- a/linux/esptun.c
+++ b/linux/esptun.c
@@ -182,7 +182,7 @@ static void write_esc(int fd, const char *buf, int n)
 }
 
 /**
- * Write a 32-bit unsigned integer.
+ * Write a 32-bit unsigned integer (as ASCII text).
  */
 static void write_uint(int fd, uint32_t x)
 {
@@ -237,7 +237,7 @@ static int setup_uart(int fd, int speed)
 
     /* fetch bytes as they become available */
     tty.c_cc[VMIN] = 1;
-    tty.c_cc[VTIME] = 1;
+    tty.c_cc[VTIME] = 0;
 
     if (ioctl(fd, TCSETS2, &tty) != 0) {
         my_err("Error from TCSETS2: %s", strerror(errno));