From 9ada9cdc52c22fabb658680d3869d3ab6ab87f61 Mon Sep 17 00:00:00 2001
From: guowenxue <guowenxue@gmail.com>
Date: Mon, 19 Aug 2024 10:26:57 +0800
Subject: [PATCH] update booster from booster project

---
 booster/test/comport.c |   34 +++++++++++++++++-----------------
 1 files changed, 17 insertions(+), 17 deletions(-)

diff --git a/booster/test/comport.c b/booster/test/comport.c
index 80be4e4..df216dc 100644
--- a/booster/test/comport.c
+++ b/booster/test/comport.c
@@ -1,15 +1,15 @@
 /*********************************************************************************
- *      Copyright:  (C) 2021 Guo Wenxue <guowenxue@gmail.com> 
+ *      Copyright:  (C) 2021 Guo Wenxue <guowenxue@gmail.com>
  *                  All rights reserved.
  *
  *       Filename:  comport.c
- *    Description:  This file used to do ioctl() on common device or communicate 
+ *    Description:  This file used to do ioctl() on common device or communicate
  *                  with serial port/TTY device.
- *                 
+ *
  *        Version:  1.0.0(5/1/2021~)
  *         Author:  Guo Wenxue <guowenxue@gmail.com>
  *      ChangeLog:  1, Release initial version on "5/1/2021 10:08:05 AM"
- *                 
+ *
  ********************************************************************************/
 #include <getopt.h>
 #include <libgen.h>
@@ -53,14 +53,14 @@
         {NULL, 0, NULL, 0}
     };
 
-    while ((opt = getopt_long(argc, argv, "d:b:s:vh", long_options, NULL)) != -1)
+    while ((opt = getopt_long(argc, argv, "d:b:s:xvh", long_options, NULL)) != -1)
     {
         switch (opt)
         {
           case 'd':
               dev_name = optarg;
               break;
-              
+
           case 'b':
               baudrate = atoi(optarg);
               break;
@@ -175,10 +175,10 @@
 
     ptr = strdup(name);
     progname = basename(ptr);
-    printf("Usage1: comport -d <device> [-b <baudrate>][-s <settings>] [-x]\n");
-    printf(" -d[device  ]  device name\n");
+    printf("Usage: comport -d <device> [-b <baudrate>][-s <settings>] [-x]\n");
+    printf(" -d[device  ]  device name, such as /dev/ttyUSB0\n");
     printf(" -b[baudrate]  device baudrate (115200, 57600, 19200, 9600), default is 115200\n");
-    printf(" -s[settings]  device settings as like 8N1N(default setting)\n");
+    printf(" -s[settings]  device settings as like 8N1N(defalt setting)\n");
     printf("                 - data bits: 8, 7\n");
     printf("                 - parity: N=None, O=Odd, E=Even, S=Space\n");
     printf("                 - stop bits: 1, 0\n");
@@ -211,7 +211,7 @@
 void stdin_nonblock(void)
 {
     struct termios ttystate;
-    
+
     //get the terminal state
     tcgetattr(STDIN_FILENO, &ttystate);
 
@@ -219,21 +219,21 @@
     ttystate.c_lflag &= ~ICANON;
     //minimum of number input read.
     ttystate.c_cc[VMIN] = 1;
-    
+
     //set the terminal attributes.
     tcsetattr(STDIN_FILENO, TCSANOW, &ttystate);
-}   
-        
+}
+
 int kbhit(void)
-{       
+{
     struct timeval tv;
     fd_set fds;
-    tv.tv_sec = 0; 
-    tv.tv_usec = 0; 
+    tv.tv_sec = 0;
+    tv.tv_usec = 0;
     FD_ZERO(&fds);
     FD_SET(STDIN_FILENO, &fds); //STDIN_FILENO is 0
     select(STDIN_FILENO + 1, &fds, NULL, NULL, &tv);
     return FD_ISSET(STDIN_FILENO, &fds);
-}      
+}
 
 

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