lagerschaden Posted January 24, 2018 Posted January 24, 2018 Hi, can anybody tell me, why the rights on the serial port ttyS0 are R/W for the user (root), but only W for the group (tty) ??? crw--w---- 1 root tty 251, 0 Jan 24 19:45 /dev/ttyS0 Hardware is orangepi one, OS is Linux pi-one 3.4.113-sun8i #6 SMP PREEMPT Tue Jan 16 14:36:25 CET 2018 armv7l GNU/Linux I can change the rights with chmod, but the change is not permanent after a reboot. L.
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