Unable to open serial port /dev/ttyUSB0
2014-07-09 15:50
204 查看
ubuntu12.04使用USB转串口时出现权限不够问题,如下
Unable to open serial port /dev/ttyUSB0
权限不够
解决办法:
通过增加udev规则来实现。步骤如下:
创建文件/etc/udev/rules.d/70-ttyusb.rules
在文件内增加一行
KERNEL=="ttyUSB[0-9]*", MODE="0666"
重新插入USB转串口设备,普通用户就有权限访问了。
70-ttyusb.rules文件还有另一种写法,先用lsusb查看USB转串口芯片的idVendor和idProduct
#lsusb
显示结果中有这么一行
Bus 005 Device 007: ID 0403:6001 Future Technology Devices International, Ltd FT232 USB-Serial (UART) IC
ID 0403:6001表示idVendor=0403,idProduct=6001
70-ttyusb.rules的内容如下:
SUBSYSTEM=="tty", ATTRS{idVendor}=="0403", ATTRS{idProduct}=="6001",MODE="0666"
重新插入USB转串口设备,普通用户同样可以访问了
Unable to open serial port /dev/ttyUSB0
权限不够
解决办法:
通过增加udev规则来实现。步骤如下:
创建文件/etc/udev/rules.d/70-ttyusb.rules
在文件内增加一行
KERNEL=="ttyUSB[0-9]*", MODE="0666"
重新插入USB转串口设备,普通用户就有权限访问了。
70-ttyusb.rules文件还有另一种写法,先用lsusb查看USB转串口芯片的idVendor和idProduct
#lsusb
显示结果中有这么一行
Bus 005 Device 007: ID 0403:6001 Future Technology Devices International, Ltd FT232 USB-Serial (UART) IC
ID 0403:6001表示idVendor=0403,idProduct=6001
70-ttyusb.rules的内容如下:
SUBSYSTEM=="tty", ATTRS{idVendor}=="0403", ATTRS{idProduct}=="6001",MODE="0666"
重新插入USB转串口设备,普通用户同样可以访问了
相关文章推荐
- 报错:Unable to open serial port /dev/ttyUSB0 ubuntu或者 (ttyACM)
- Unable to open serial port /dev/ttyUSB0
- Unable to open serial port /dev/ttyUSB0
- 启动tomcat出现Unable to open debugger port (127.0.0.1:63214): java.net.SocketException "socket closed"
- Linux 执行partprobe命令时遇到Unable to open /dev/sr0 read-write (Read-only file system)
- 三星i9100 CM9 rom Unable to open log device '/dev/log/main'的解决办法
- androidstudio调试时报Error running app: Unable to open debugger port (localhost:8600): java.net.ConnectE
- 【IDEA】idea debug 无法启动项目解决 Unable to open debugger port
- Unable to open log device ‘/dev/log/main’: No s...
- “minicom: cannot open /dev/ttyUSB0: 没有那个文件或目录”问题的解决
- VMware Unable to open kernel device "\\.\VMCIDev\VMX": 系统找不到指定的文件. Did you reboot after Module Devi
- Unable to open log device '/dev/log/main': No s...
- 2017.10.13 unable to open debugger port(127.0.0.1:10308)
- Unable to open debugger port (127.0.0.1:63777): java.net.BindException "Address already in use: JVM
- Unable to open debugger port (127.0.0.1:4184): java.net.SocketException "socket closed"
- Xampp error:Port 80 in use by "Unable to open process" with PID 4!
- LOGCAT里面出现UNABLE TO OPEN LOG DEVICE ‘/DEV/LOG/MAIN': NO SUCH FILE OR DIRECTORY 的解决办法
- 挂载文件系统时Warning: unable to open an initial console和can't open /dev/ttyS0: No such file or directory
- USBView & How to get the Serial Number from a USB disk & qextserialport
- idea debug 无法启动项目解决 Unable to open debugger port (127.0.0.1:50812)