Re: Digi Watchport/T temperature sensor as /dev/ttyU

On Sun, 24 Jul 2016 08:03:30 +0200
"O. Hartmann" <ohartman_at_zedat.fu-berlin.de> wrote:

> Am Sat, 23 Jul 2016 14:49:11 -0600
> Ian Lepore <ian_at_freebsd.org> schrieb:
> 
> > On Sat, 2016-07-23 at 22:04 +0200, O. Hartmann wrote:  
> > > Am Fri, 22 Jul 2016 10:52:54 -0600
> > > Ian Lepore <ian_at_freebsd.org> schrieb:
> > >     
> > > > On Fri, 2016-07-22 at 18:35 +0200, O. Hartmann wrote:    
> > > > > For temperature monitoring, we have a bunch of Digi Watchport/T
> > > > > sensors: 
> > > > > 
> > > > > http://ftp1.digi.com/support/documentation/90000406_H.pdf
> > > > > 
> > > > >       
> > > > [...]
> > > > 
> > > > I think the attached patch will make it show up as a ttyU*/cuaU*
> > > > device
> > > > for you.  (You should probably use the /dev/cuaU* flavor, to avoid
> > > > problems with tty layer and modem control signals).
> > > > 
> > > > I keep wishing we had a mechanism, like a sysctl that could be set
> > > > or
> > > > something, that would let you supply a vendor/product pair and have
> > > > the
> > > > ugensa driver attach to that device, for quick testing of this sort
> > > > of
> > > > thing.
> > > > 
> > > > -- Ian    
> > > 
> > > No, it doesn't change anything. I applied the patch to most recent
> > > CURRENT and it is
> > > still the same. But thanks anyway.
> > > 
> > > Kind regards,
> > > 
> > > oh    
> > 
> > Oh, my bad, I forgot to mention:  You'll have to manually "kldload
> > ugensa" before plugging in the device (or load it from your
> > loader.conf).
> > 
> > When the change gets committed (assuming it works), the devd usb
> > scripts will get regenerated, and that's what handles the auto-load of
> > the driver.
> > 
> > -- Ian  
> man ugensa doesn't exist! As I wrote earlier, I tried everything to load what I could
> find. It seems, the patch and the hint about ugensa.ko did the magic ;-) Thank you very
> much! Could the patch be made permanent to FreeBSD CURRENT?
> 
> And also important: where is the man page for ugensa? Can the the module be compiled
> staitcally into the kernel or are there pitfalls?
> 

Even the most complete man page found in the internet, the one from
Dragonfly, doesn't list your Digi International device as being one
of those supported.

Still, having the man page under FreeBSD would at least provide a hint
that the driver even exists.

I added device ugensa to my config file and the kernel was generated
without an error.

> root_at_localhost: [src] kldload ugensa
> 
> ugen2.7: <Digi International> at usbus2
> ugensa0: <Digi International WatchportT, rev 1.10/1.00, addr 7> on usbus2
> ugensa0: Found 1 interfaces.
> root_at_thor: [src] man ugensa
> No manual entry for ugensa
> root_at_localhost: [src] ll /dev/cuaU0*
> 203 crw-rw----  1 uucp  dialer  -  0xcb Jul 24 07:51 /dev/cuaU0
> 204 crw-rw----  1 uucp  dialer  -  0xcc Jul 24 07:51 /dev/cuaU0.init
> 205 crw-rw----  1 uucp  dialer  -  0xcd Jul 24 07:51 /dev/cuaU0.lock
> 
> 
> I'll try now to get informations out of the device, I let you know whether that is a
> success. But anyway, again, thank you for helping making the device visible and available.
> 

-- 
Gary Jennejohn