USB to COM Port connections

[Richard Shaw]

On Tue, May 26, 2015 at 11:45 AM, Mickey <binarynut at comcast.net> wrote:

>
>
> On 05/26/2015 08:30 AM, Dave Ihnat wrote:
>
>> On Mon, May 25, 2015 at 08:20:41PM -0400, Mickey wrote:
>>
>>> Why is this a bad syntax ?
>>>
>>> # chmod 666 /dev/ttyACM0 –>  ( Why Is this a bad syntax)
>>>
>> Octal.  "chmod 0666 /dev/ttyACM0".
>>
>> Cheers,
>> --
>>         Dave Ihnat
>>         dihnat at dminet.com
>>
> I ran this command and got the following ERROR message;
>
> su -c "chmod 666 /dev/ttyACMO"
>
> Error message;
>
> chmod: Cannot access '/dev/ttyACMO' :  No such file or directory
>
>
Assuming that is the correct device name, make sure that it's AMC0 (zero)
not AMCO (the letter O). And it will not work when the device is not
plugged in as the entry in /dev is created on the fly when the device is
plugged in.

Richard
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