Re: Using USB serial device with a cdc-acm driver
On Dec 2, 2014, at 3:24 AM, Bjørn Mork <bjorn@mork.no> wrote:
> Dmitriy Fitisov <dmitriy@radier.ca> writes:
>
>> we have a small device of our own, which communicates through serial USB on Windows.
>> Now we need it to work on Raspberry (yes, I know this is Debian, which is Raspberry based on).
>> USB descriptors configured as a modem, so, when I connect it to Linux, cdc-acm module is loaded.
>> However, there is apparently some process which is watching modems, so on connection
>> I got some info on my device - on Ubuntu it is AT commands, for which I have adapted firmware
>> (seems ModemManager is running), but on Raspberry I cannot find out what process attaches
>> to my "modem" and what it wants.
>
> lsof /dev/ttyACM0
>
That I also tried last week. Nothing is open.
It is like "probe on startup", some program does not recognize it as a valid terminal and close it.
Just how it seems to me.
I would not care about that, but my firmware receives some data which I do not expect at that time.
>
> Bjørn
>
>
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