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Date:      Mon, 2 Oct 2017 00:05:59 +0200
From:      Tomasz CEDRO <tomek@cedro.info>
To:        Ian Lepore <ian@freebsd.org>
Cc:        Hans Petter Selasky <hps@selasky.org>, "freebsd-usb@FreeBSD.org" <freebsd-usb@freebsd.org>
Subject:   Re: USB/U3G: Added support for Panasonic CF-F9 GOBI 3G modem to U3G module
Message-ID:  <CAFYkXjkZDw0_xgUZZrEJk51atmWe6tsjqz3bK13K1U=GQhaLoQ@mail.gmail.com>
In-Reply-To: <1506891559.22078.50.camel@freebsd.org>
References:  <CAFYkXjnF%2BwkrxNC6nf9s20AytVkszykEcPsr=roiaYugAo5YWg@mail.gmail.com> <ec4baec2-66a9-c5ce-eb89-01f553890a11@selasky.org> <1506465459.73082.168.camel@freebsd.org> <165556bc-c011-bebd-feee-5bbd4cb5943e@selasky.org> <CAFYkXjm=TsHzjXgfFFRyXdSnj3RoeN%2BMNE_K5DBuHphygcqyjw@mail.gmail.com> <1506876055.22078.24.camel@freebsd.org> <CAFYkXjkYsfdWPBJu_wQWZcbHzR9vG0W7qdscBF1ornsZik6gbw@mail.gmail.com> <87d62aba-0b35-8b20-cf1f-9fd2de2d301a@selasky.org> <CAFYkXjkzm%2Bz4c9chtvO_Go9cfnn3_Awpx2m%2BcvNUZR_qxX1-Sw@mail.gmail.com> <1506882193.22078.32.camel@freebsd.org> <CAFYkXjmaJZ7biOtfdHP_-YJ_vKBoj0XXPDZxatraB8iVEgmxeQ@mail.gmail.com> <1506886709.22078.43.camel@freebsd.org> <CAFYkXjmS0vPj8KCDZcOoaWqzZ1%2Bxv7LcAhBjcNtE-sDy%2BJZtSw@mail.gmail.com> <1506891559.22078.50.camel@freebsd.org>

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On Sun, Oct 1, 2017 at 10:59 PM, Ian Lepore <ian@freebsd.org> wrote:
> On Sun, 2017-10-01 at 22:20 +0200, Tomasz CEDRO wrote:
>> On Sun, Oct 1, 2017 at 9:38 PM, Ian Lepore <ian@freebsd.org> wrote:
>> >
>> > On Sun, 2017-10-01 at 20:59 +0200, Tomasz CEDRO wrote:
>> > >
>> > > On Sun, Oct 1, 2017 at 8:23 PM, Ian Lepore <ian@freebsd.org>
>> > > wrote:
>> > > >
>> > > >
>> > > > On Sun, 2017-10-01 at 20:17 +0200, Tomasz CEDRO wrote:
>> > > > >
>> > > > >
>> > > > > [...old stuff...]
>> > > I have verified on uath device (more on that below) and it turns
>> > > out
>> > > $cdev works fine.. but it returns /dev/usb/X.Y.Z not the
>> > > /dev/cuaU0
>> > > which does not work with this "gobi_loader" utility which
>> > > requires
>> > > /dev/cuaU0 (CDC / serial port device)... any clues how to replace
>> > > $cdev with cuaUX? :-)
>> > >
>> > > Regarding the UATH, I have TP-LINK TL-WN822N Ver2.0 based on
>> > > Atheros
>> > > 9002[1] and it seems to work with modified /dev/devd/uath.conf
>> > > but
>> > > the
>> > > uathload returns "Operation not permitted" when executed as root
>> > > and
>> > > during boot..
>> > >
>> > > [1] https://wikidevi.com/wiki/TP-LINK_TL-WN822N_v2
>> > >
>> > Hmmm.  I think we need to key off the tty 'attach' event instead of
>> > the
>> > devfs 'create' event.  The tty attach for a usb device is the one
>> > event
>> > that has all the info we need in one message.  This is assuming the
>> > device name in dmesg on attach is u3g0 or u3g1 or whatever.
>> >
>> > attach 100 {
>> >         device-name             "(u3g)[0-9]+";
>> >         match "vendor"          "0x04da";
>> >         match "product"         "0x250e";
>> >         action "/usr/local/bin/gobi_loader /dev/cua$ttyname
>> > /boot/firmware/gobi/";
>> > };
>> >
>> > The way I arrived at this conclusion was to first look in the devd
>> > source to figure out/remind myself that devd creates variables from
>> > all
>> > the tag=value tuples it finds in the events coming from the kernel.
>> >  Then I connected to devd using netcat so I could watch the events
>> > as
>> > they happen:
>> >
>> >   nc -U /var/run/devd.pipe
>> >
>> > then I plugged in a usb-serial adapter (I have no u3g stuff), which
>> > creates a whole lot of events.  The last one was the tty attach:
>> >
>> > +uplcom0 at bus=1 hubaddr=1 port=1 devaddr=2 interface=0
>> > ugen=ugen1.2
>> > vendor=0x067b product=0x2303 devclass=0x00 devsubclass=0x00
>> > devproto=0x00 sernum="" release=0x0300 mode=host intclass=0xff
>> > intsubclass=0x00 intprotocol=0x00 ttyname=U0 ttyports=1 on uhub1
>> >
>> > The '+' means it's an attach, the "device-name" variable is set
>> > from
>> > the space-delimited word after the +, and then vars are created
>> > from
>> > all the tag=value tuples between 'at' and 'on'.  So that gives us
>> > the
>> > info to match product and vendor, and ttyname is the suffix to
>> > append
>> > to /dev/cua to make the cdev name.
>> >
>> > -- Ian
>> Awsome! That works!! Thank you Ian!! Thank you for pointing out how
>> that was achieved! :-)
>>
>> Is there any way to echo something out to the console to notify user
>> that firmware is being updated? This takes some time and it would be
>> nice to see something happens in the background.. I cannot see
>> anything with action "logging blah"; maybe no need for that?
>>
>
> I think you can use logger(1) in the action, like:
>
>   action "logger -p kern.crit Loading firmware to cua$ttyname ;
>     /usr/local/bin/gobi_loader etc etc"
>
> The 'kern.crit' should be a high enough priority to ensure it comes out
> on the console, but it depends on syslog.conf of course.  If
> gobi_loader outputs a nice message it could be piped to logger(1)
> instead of putting the message in the command.
>
> -- Ian

Logger works with syslog which is loaded after modules and firmware,
this is why I could not see the message.. but additional action with
/bin/echo seems to do the job :-)

Thank you guys! You are the best! FreeBSD ROX!!! =)

https://github.com/freebsd/freebsd/pull/115

-- 
CeDeROM, SQ7MHZ, http://www.tomek.cedro.info



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