PuTTY serial debugging, for ordinary users to increase access to the serial device permissions

In general, only the root user can access the serial device using PuTTY, if you want to increase access to the serial device for ordinary users, you can follow the following steps:

(for example, Ubuntu 14.04.3 system, the first serial device will be recognized as a /dev/ttyusb0)

(1) Enter the catalogue /ETC/UDEV/RULES.D

(2) New file 70-ttyusb.rules

(3) Add the following to the above documents,

kernel== "ttyusb[0-9]*", mode= "0666"

Then reseat the serial device, the normal user can use PuTTY debug serial port ~ ~

Finish.

PuTTY serial debugging, for ordinary users to increase access to the serial device permissions