Linux串口软件c-kermit配置和使用问题？

[elesun8]

Linux串口软件c-kermit配置和使用问题？

应用环境：PC 虚拟机 redhat Linux(2.6.18-53.el5) gcc(4.1.2) arm-linun-gcc(4.3.2)

安装：
下载tar包：http://www.columbia.edu/kermit/ftp/archives/cku302.tar.gz
tar zxvf cku302.tar.gz -C kermit
cd kermit
make linux
cp wermit /usr/bin
cp wart /usr/bin


配置
# vi ~/.kermrc
输入：
set line /dev/ttyUSB0
set speed 115200
set carrier-watch off
set handshake none
set flow-control none
robust
set file type bin
set file name lit
set rec pack 1000
set send pack 1000
set window 5
c


使用：
[root@localhost /]# wermit
Locked by process 13625
?SET SPEED has no effect without prior SET LINE
Sorry, you must SET LINE or SET HOST first
C-Kermit 9.0.302 OPEN SOURCE:, 20 Aug 2011, for Linux
Copyright (C) 1985, 2011,
Trustees of Columbia University in the City of New York.
Type ? or HELP for help.
(/) C-Kermit>connect
Sorry, you must SET LINE or SET HOST first
(/) C-Kermit>

这是怎么回事？如何解决？

[elesun8]

恳请高手们指教

[chou_o_ning]

可能是 /dev/ttyUSB0的权限问题，试试 sudo chmod 777 /dev/ttyUSB0

[elesun8]

还是不行啊。。。。。。

[elesun8]

恳请高手指点

[alpbrook]

Locked by process 13625：串口已经被进程13625打开了。把那个进程关闭就行了。 ll /dev/ttyUSB0 crw-rw---- 1 root dialout 188, 0 Mar 11 21:12 /dev/ttyUSB0 不需要超级用户权限。只要把用户加到dialout组就行了。 usermod -aG dialout <userid>

[zhaobi12]

权限问题.使用sudo -s