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How do I set permission on the / dev / rfcomm0 device?

I am trying to start a box with a pipe, but I got an error like could not write / read the device. I think kannel has read / write permission on bluetooth device / dev / rfcomm0

Thanks for reading. Any help would be appreciated.

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3 answers


with root do account



chmod a+rw /dev/rfcomm0
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If you know which program is generating the error message, run the program with strace

and see which system call is giving the error. If so open

, then the solution chmod

recommended by Francis should do the trick. If it is read

or write

, then you should investigate further: is there a problem in the kernel or the application code.



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The permission to access the bluetooth device can be added by checking the device file group with ls -h and adding the following command to that group of the current user:

sudo usermod -a -G <rfcomm0 group> $USER
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