Re: problems in running application(ASYN)

[Eric Norum <norume@aps.anl.gov>]

Make sure that the account running the EPICS/ASYN application has  
read/write privileges to the special file.
	chmod 666 /dev/ttyS0

Or, if you want to restrict the access to a particular account:
	chown zhangdemin99 /dev/ttyS0
	chmod 600 /dev/ttyS0


Also, are you sure that you have the serial port name right in your  
startup command (st.cmd) file?  Your message shows a backslash at the  
beginning of the name -- is this just a typo when you created the  
posting to tech-talk?

On Jun 5, 2007, at 9:18 PM, zhangdemin99 wrote:

> Dear all,
>   I have built ASYN on my computer, but there are some problems  
> when running application. It said: \dev/ttyS0 can't open Permission  
> denied
>   Should I open the serial port in the Linux first or  is there   
> another problems? what should I do next?
>
> many thanks in advance.
>
>                                      demin zhang
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> 一 起 来，150 万 人 同 时 在 玩 的 梦 幻 西 游

--
Eric Norum <norume@aps.anl.gov>
Advanced Photon Source
Argonne National Laboratory
(630) 252-4793