Comment 16 for bug 374782

in all cases FILE = /dev/rfcomm0

after boot, ls cmd, the FILE has permissions "crw-rw---- l root root"
after sudo su & chmod 777, ls cmd, the FILE has permissions "crwxrwxrwx". at this point tried test print, but permission denied.
reboot, ls cmd, FILE reverts to original permissions, ie "crw-rw----" .

cat cmd, FILE result is permission denied.
after sudo su, cat cmd FILE, cmd prompt is lost and have to close terminal to reset.

wc cmd produces same results as cat.

i do not understand why permissions once changed do not become permanent? does the previous give us any hints as to the permission problem?

mark