umodem0, Cisco USB serial console, and quirks

[Hans Petter Selasky]

On 11/2/18 10:24 AM, Andrey V. Elsukov wrote:
> On 02.11.2018 12:12, Hans Petter Selasky wrote:
>>> # cu -l /dev/cuaU0
>>> Connected
>>>
>>> <nothing here>
>>>
>>
>> Did you try "-s" option to set another baudrate?
> 
> Yes, the result is the same.
> 
> # cu -s 115200 -l /dev/cuaU0
> Connected
> 
> If I understand correctly from
> 	https://www.bit0.com/tmp/usbmon-ciscoasa-verbose.txt
> 
> The
> 
> Leftover Capture Data: 80250000000008
> 
> and
> 
>   frame[1] WRITE 7 bytes
>   0000  80 25 00 00 00 00 08 --  -- -- -- -- -- -- -- --  |.%.....
> 
> is something like configuration data, where 80 25 is 0x2580 == 9600, so
> it should work with default speed. When I use 115200, I see this:
> 

All the commands for USB modems should be described here:

https://www.usb.org/sites/default/files/CDC_EEM10.pdf

I'm sorry, but I don't have time currently to decode the Linux traces 
and compare with FreeBSD.

--HPS