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2

gammu and device permissions

rated 0 times [ 2] [ 0] / answers: 1 / hits: 10356 / 2 Years ago, thu, december 9, 2021, 12:54:10

I have Ubuntu Server 12.04 LTS and on it I have installed gammu. I use it to control my "Nokia 5310 Xpress music" cell phone.

Now when I run "gammu --identify" it does not work, says I dont have the right device permissions, but it works with sudo gammu --identify

Now my Nokia device is listed as ttyACM0 in my /dev/ directory... its permissions are rw for root and dialout... I tried to change these permissions so that I can use this device with gammu without sudo ... I did sudo chmod 777 /dev/ttyACM0 and it changed the permissions, but still it did not work...

I even went and added a file in /etc/udev/rules.d/ by the name of 40-41-descriptive-name.rules which contained the following line:

SUBSYSTEM=="usb", ATTR{idVendor}=="0421", ATTR{idProduct}=="006b", MODE="0600", OWNER="MyUserName"

and then restarted udev but still no luck...

I even did sudo chown myusername /dev/ttyACM0 and gave myself the ownership of the device but still I needed to use sudo to get things done...

btw if I do lsusb I get the following info:

BUS 002 Device 003: ID 0421:006b Nokia Mobile Phones

I tried all these ways to change the device permissions so that i could use "gammu --identify" instead of sudo gammu --identify but no luck.

How can i fix this dilemma?

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hirtieve

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4 Years ago

answered 2 Years ago eballxeye · Accepted Answer

Taking help from fellow answers I found the solution to my problem...

In my gammu configuration file I changed the port to /dev/phone

Then I went to /etc/udev/rules/ directory and in it I created a file name 99-phone.rules, then in that file I wrote the following line:

SUBSYSTEM=="usb", ATTRS{idVendor}=="0421", ATTRS{idProduct}=="006b", MODE="0666" , SYMLINK+="phone"

Then I rebooted my system and then when I connected my Nokia phone, I was able to run commands on it without using sudo!

Thanks Everyone especially @firusvg !!