Serial Port for Root Only

[Tim]

On Fri, 2011-04-29 at 16:20 -0700, Mike Dwiggins wrote:
> I have a USB serial adapter I am trying to use as a seial console device 
> for putty.  It is identified and works like a champ for root but will 
> not work for any other user.
> 
> For anyone other than root putty returns "Unable to Open Port".  I have 
> checked proc/bus/usb/devices and can find nothing that would restrict use.

Are you logging in twice, simultaneously?  The first login gets to own
the unsharable hardware, to the exclusion of subsequent logins at the
same time as the first login is still logged it.  The first login has to
logout before someone else could use the same hardware.

-- 
[tim at localhost ~]$ uname -r
2.6.27.25-78.2.56.fc9.i686

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