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Date:      Sun, 4 Nov 2018 19:05:38 -0500 (EST)
From:      Mike Andrews <mandrews@bit0.com>
To:        CeDeROM <cederom@tlen.pl>
Cc:        bu7cher@yandex.ru, "freebsd-usb@FreeBSD.org" <freebsd-usb@freebsd.org>
Subject:   Re: umodem0, Cisco USB serial console, and quirks
Message-ID:  <alpine.BSF.2.21.9999.1811041851500.98957@beast.int.bit0.com>
In-Reply-To: <CAFYkXj=PzMx3TKSLPNvcLT3=3mUTFkcpRftFGh9MxB4_o7-RCw@mail.gmail.com>
References:  <alpine.BSF.2.21.1709191021260.34953@beast.int.bit0.com> <d9dbef0b-c22e-c7ea-34a2-f36e9e768745@selasky.org> <alpine.BSF.2.21.1709191205280.1218@beast.int.bit0.com> <0c4022f3-bd21-49b5-cadd-daeb9f1f3081@selasky.org> <alpine.BSF.2.21.1709262210180.33243@beast.int.bit0.com> <33f3a1f8-69d1-9240-6381-8a851beb97d0@yandex.ru> <18d57cbe-1235-aedf-45e6-e36b495ca1eb@bit0.com> <15cff2a5-021f-49e5-b287-37a14a9321b3@selasky.org> <5d0a544d-517c-2fb9-84e8-d87704474cce@yandex.ru> <5cdb37b5-fca1-99db-cacc-cf72f0cee0df@selasky.org> <51ae0fc4-7e93-30d6-caa3-393afbe278b6@yandex.ru> <bbdda4ab-567f-2658-b83e-5bf0e1176e9a@selasky.org> <CANCZdfqoC8QaDDRP0QoYO0C1WvT_EBmNC8UXAzG-GEbaoK0Xyg@mail.gmail.com> <0dd7b89f-6a82-1d6e-0d0a-4f2b9515bd5d@yandex.ru> <CAFYkXj=PzMx3TKSLPNvcLT3=3mUTFkcpRftFGh9MxB4_o7-RCw@mail.gmail.com>

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On Fri, 2 Nov 2018, CeDeROM wrote:

> Try to add VID/PID of your device into a usbmodem driver. Use
> configurations to see which one works with your device. Rebuild the
> module/kernel, reboot, try it out untill success.
>
> After your device is recognised by usbmodem and creates several cuaU*
> devices.. still Your device may require uploading a specific firmware
> in order for gsm modem to work. You can find those in Windows driver
> package.
>
> Use MINICOM for cuaU communications that would save you a debug time.
>
> That works for me - added 3 devices like that with no problem. In fact
> they work better on FreeBSD than Windows ;-)
>
>
> Alternartively, replace your modem with something that is known to
> work - for instance QUECTEL EC25 LTE module works far better than my
> previous stock 3G module here..

I think we're losing the plot here a bit.

While this is generally useful advice, this thread was originally about 
the USB serial console port of Cisco ASA firewalls.  It should just be a 
plain ol' USB-to-serial setup.  No actual modems of any kind involved, 
especially not cellular ones.

I suspect we shouldn't even be loading umodem at all -- just ucom.  But 
for some reason, umodem gets loaded when I plug the thing in.  With just 
an FTDI serial-to-usb adapter in there, umodem doesn't just, just ucom.

These firewalls (and I suspect all of Cisco's newer routers and switches) 
have both normal serial and mini-USB-to-serial ports, and you can connect 
a simple USB-to-serial converter (PL2303, FTDI, etc) into the normal port 
and of course that works fine on FreeBSD.  But it would be nice to skip 
needing the dongle...


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