OSTC Sport bluetooth problem with Linux

Rick Walsh rickmwalsh at gmail.com
Mon Apr 3 19:45:00 PDT 2017


On 4 April 2017 at 11:59, Stephen Hemminger <stephen at networkplumber.org>
wrote:

> On Tue, 4 Apr 2017 11:18:51 +1000
> Rick Walsh <rickmwalsh at gmail.com> wrote:
>
> > Hi Stephen,
> >
> > On 4 April 2017 at 11:06, Stephen Hemminger <stephen at networkplumber.org>
> > wrote:
> >
> > > I am running Debian Stretch with current AppImage version of
> Subsurface.
> > > Trying to download dives from OSTC Sport.
> > >
> > > The Bluetooth pairing is successful and the rfcomm connection comes up,
> > > but the serial port won't open.
> > >
> > > # rfcomm -i hci0 connect rfcomm0 00:80:25:4A:10:77 1
> > > Connected /dev/rfcomm0 to 00:80:25:4A:10:77 on channel 1
> > > Press CTRL-C for hangup
> > > [0.003838] ERROR: Input/output error (5) [in
> ../../src/serial_posix.c:198
> > > (dc_serial_open)]
> > > [0.003927] ERROR: Failed to open the serial port. [in
> > > ../../src/hw_ostc3.c:344 (hw_ostc3_device_open)]
> > >
> > >
> > > Possibly related dmesg
> > > [  482.059744] Bluetooth: TIOCGSERIAL is not supported
> > > [  482.060272] Bluetooth: TIOCGSERIAL is not supported
> > > [  488.060994] Bluetooth: TIOCGSERIAL is not supported
> > >
> > > Running stock Debian kernel which is 4.9..
> > >
> >
> > Instead of rfcomm, have you tried using the "native" Bluetooth support in
> > Subsurface to connect to your dive computer.  It is much easier and
> > generally more reliable.  See section 5.2.2 of the user manual
> > https://subsurface-divelog.org/documentation/subsurface-4-user-manual/
> >
> > If that fails, please run subsurface -vv from the command line, try using
> > the native Bluetooth support and post the terminal output here.
>
> The FAQ should be updated to reflect that native works better.
>
> Thank you for the very good suggestion, and for pointing out that the FAQ
still directs users to use the old method.

Cheers,

Rick
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