link : http://ask.xmodulo.com/change-usb-device-permission-linux.htmlHow to change USB device permission permanently on Linux – Ask XmoduloQuestion: I am trying to run gpsd on my Linux with a USB GPS receiver. However, I am getting the following errors from gpsd. gpsd[377]: gpsd:ERROR: read-only device open failed: Permission denied gpsd[377]: gpsd:ERROR: /dev/ttyUSB0: device activation faileask.xmodulo.com
1. USB 디바이스 확인
cd /dev
ls -al
2. USB 디바이스 제품 확인
lsusb -vvv
출력되는 정보에서 idVender, idProduct를 찾아 기록한다.
3. 디바이스 등록
sudo gedit /etc/udev/rules.d/50-myusb.rules
SUBSYSTEMS==”usb”, ATTRS{idVendor}==”10c4″, ATTRS{idProduct}==”ea60″, GROUP=”users”, MODE=”0666″
SUBSYSTEMS==”usb”, ATTRS{idVendor}==”2341″, ATTRS{idProduct}==”0042″, GROUP=”users”, MODE=”0666″
SUBSYSTEMS==”usb”, ATTRS{idVendor}==”1a86″, ATTRS{idProduct}==”7523″, GROUP=”users”, MODE=”0666″
4. 재실행
sudo udevadm control –reload
5. Useful link
https://www.makeuseof.com/tag/fix-usb-device-port-linux
https://m.blog.naver.com/PostView.naver?isHttpsRedirect=true&blogId=rlackd93&logNo=221312677996
6.
udevadm info -a -n /dev/ttyUSB* | grep ‘{serial}’ | head -n1
