USB to COM Port connections

[Mickey]

On 05/26/2015 12:48 PM, Richard Shaw wrote:
> On Tue, May 26, 2015 at 11:45 AM, Mickey <binarynut at comcast.net 
> <mailto: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 <mailto: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
>
>
I used the Letter (O) in the dev.

Well this is a delima, I did remove the Modem Manager so it wouldn't 
cause problems.

I'm baffled I don't know where to go from here.  I got a Six motor Drone 
I can't communicate with.