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#1 2009-11-20 16:23:10

johnboy68
Member
Registered: 2009-02-26
Posts: 7

How do I set user permissions on /dev/ttyS0

The subject says it all:

How do I set user permissions on /dev/ttyS0

When I do this:

chmod 666 /dev/ttyS0

It works but when I reboot I have to reset it again.

I need it to be persistent after a reboot.

Thanks for any help.

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#2 2009-11-20 16:26:14

perbh
Member
From: Republic of Texas
Registered: 2005-03-04
Posts: 765

Re: How do I set user permissions on /dev/ttyS0

put it in /etc/rc.local

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#3 2009-11-20 16:27:38

johnboy68
Member
Registered: 2009-02-26
Posts: 7

Re: How do I set user permissions on /dev/ttyS0

Thanks big_smile

I'll give it a try when I get home from work.

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#4 2009-11-20 16:31:14

djgera
Developer
From: Buenos Aires - Argentina
Registered: 2008-12-24
Posts: 723
Website

Re: How do I set user permissions on /dev/ttyS0

create a file /etc/udev/rules.d/60-serial.rules with:

KERNEL=="ttyS0", MODE="0666"

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#5 2009-11-20 16:32:56

djgera
Developer
From: Buenos Aires - Argentina
Registered: 2008-12-24
Posts: 723
Website

Re: How do I set user permissions on /dev/ttyS0

anyway remember that ttyS0 is with [root:uucp] (660), so if add the user to uucp group will works.

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#6 2009-11-20 16:39:56

johnboy68
Member
Registered: 2009-02-26
Posts: 7

Re: How do I set user permissions on /dev/ttyS0

djgera wrote:

anyway remember that ttyS0 is with [root:uucp] (660), so if add the user to uucp group will works.

So, do I just add my user to the uucp group or do I need to create the file /etc/udev/rules.d/60-serial.rules as well?

Thanks

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#7 2009-11-20 16:56:51

djgera
Developer
From: Buenos Aires - Argentina
Registered: 2008-12-24
Posts: 723
Website

Re: How do I set user permissions on /dev/ttyS0

only add your user to uucp wink

gpasswd -a johnboy68 uucp

Good luck!

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#8 2009-11-21 12:08:11

johnboy68
Member
Registered: 2009-02-26
Posts: 7

Re: How do I set user permissions on /dev/ttyS0

djgera wrote:

only add your user to uucp wink

gpasswd -a johnboy68 uucp

Good luck!

That took care of it.  Thank you!

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