Re: [SLUG] USB Serial port devices

From: Chuck Hast (wchast@gmail.com)
Date: Tue Jun 06 2006 - 19:18:04 EDT


On 6/6/06, Possum <vegetableblood@gmail.com> wrote:
> I'm surprised nobody has mentioned autofs
>
> http://freshmeat.net/projects/autofs/
>
> And here's a how-to for the faint-hearted:
>
> http://www.linux-consulting.com/Amd_AutoFS/autofs.html
>
> Personally, I have autofs configured to identify the device by the
> name/description it sends to the computer (the name you can see with dmesg,
> like "USB Mass Storage"). It will automatically create a symlink to
> whatever the device is and call them, i.e., /dev/usb0, /dev/psp,
> /dev/camera, etc. Furthermore, I have it set to automatically mount said
> device every time I try to access whatever directory it is to be mounted on.
>
> It's a useful little tool so you don't have to deal with your usb devices
> being mapped to /dev/sdr or w/e.
>

Ahh, hmmm how can I make a serial device into a file system... I do not
think that will work.

I need something similar for serial ports though. It is looking like I may
have to move a bunch of machines from 2.4 to 2.6 in order to do it though.

It is just sort of incredable that this has not come up, with the old
serial ports
ttyS0 was always the same physical port, but with USB serial ports if you have
multiple devices they come up any old way they feel like it. Todays ttyUSB0
maybe tomorrows ttyUSB3.... B-b

Lord help you if you plug another usb serial port into your machine, it is like
a instantanious card reshuffle.... Last time I did that, the new port became
ttyUSB0 and the device on ttyUSB0 got moved to ttyUSB2...

-- 
Chuck Hast  -- KP4DJT --
To paraphrase my flight instructor;
"the only dumb question is the one you DID NOT ask resulting in my going
out and having to identify your bits and pieces in the midst of torn
and twisted metal."
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