关于串口设备管理权限的问题

zswlb9999

我使用的是archlinux
尝试以一般用户使用串口的传真软件,提示没有权限:

发送到传真使用：/usr/bin/fax NAME="'wu'" DEV='ttyS0' PAGE='a4'  -l send '23423423' '/tmp/kde-wu/kdeprintfax_j3lfQIjC'
/tmp/kde-wu/kdeprintfax_j3lfQIjC is postscript...
efax: Sun Oct 14 13:56:05 2007 efax v 0.9 Copyright 1999 Ed Casas

efax: 56:05 Error: can't open serial port /dev/ttyS0: Permission denied
    ---------------  如何修改这个权限

efax: 56:05 failed -> /tmp/kde-wu/kdeprintfax_j3lfQIjC.001
efax: 56:05 failed -> /tmp/kde-wu/kdeprintfax_j3lfQIjC.002
efax: 56:05 failed -> /tmp/kde-wu/kdeprintfax_j3lfQIjC.003
efax: 56:05 done, returning 2 (unrecoverable error)
There were errors (see T23423423.log).