From: "Steven J. Ackerman" <steve-I01wfHm1r9xGyKhy+UYuEA@public.gmane.org>
To: 'Oliver Neukum' <oneukum-l3A5Bk7waGM@public.gmane.org>
Cc: "'Bjørn Mork'" <bjorn-yOkvZcmFvRU@public.gmane.org>,
linux-usb-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
linux-serial-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
Subject: RE: Linux USB Serial
Date: Tue, 18 Sep 2012 10:00:11 -0400 [thread overview]
Message-ID: <002e01cd95a5$ec0a4190$c41ec4b0$@acscontrol.com> (raw)
In-Reply-To: <5789366.GGq3fAeCyr-ugxBuEnWX9yG/4A2pS7c2Q@public.gmane.org>
> It shouldn't. Your device follows the CDC ACM specification, aside from
> the incorrect subclass. Such devices don't generate /dev/ttyUSB devices
> nodes. They generate /dev/ttyACM nodes.
>
Thank you. I did some more research on this last night and found out that
I was being mis-lead by observing how other USB Serial devices were
working and used under Linux - without having to install a driver.
Apparently
these were all using the FTDI chip - and there is a driver that is already
installed for them.
> That is the wrong driver. usbserial is for vendor specific serial devices.
> Your device follows a class specification. You need cdc_acm. As soon
> as the subclass is fixed, it should autoload.
>
Yes - the driver now autoloads and I can communicate with the device
using the /dev/ttyACM0 node. I was able to install picocom and talk to and
from our display.
Thanks to everyone who replied to this question for your assistance.
Steven J. Ackerman, Consultant
ACS, Sarasota, FL
http://www.acscontrol.com
mailto:steve-I01wfHm1r9xGyKhy+UYuEA@public.gmane.org
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prev parent reply other threads:[~2012-09-18 14:00 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-09-17 19:28 Linux USB Serial Steven J. Ackerman
2012-09-17 20:07 ` Bjørn Mork
2012-09-17 21:07 ` Steven J. Ackerman
2012-09-17 21:41 ` Greg KH
2012-09-17 21:56 ` Steven J. Ackerman
2012-09-17 22:08 ` 'Greg KH'
2012-09-17 22:27 ` Steven J. Ackerman
2012-09-18 6:46 ` Oliver Neukum
[not found] ` <5789366.GGq3fAeCyr-ugxBuEnWX9yG/4A2pS7c2Q@public.gmane.org>
2012-09-18 14:00 ` Steven J. Ackerman [this message]
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