[PATCH] u-blox: ignore non-AT ttyACM interfaces

Wed Apr 11 14:18:11 UTC 2018

On Wed, 2018-04-11 at 13:27 +0000, Matthew Starr wrote:
> > -----Original Message-----
> > From: Reinhard Speyerer [mailto:rspmn at arcor.de]
> > Sent: Tuesday, April 10, 2018 4:23 PM
> > To: Matthew Starr
> > Cc: Dan Williams; modemmanager-devel at lists.freedesktop.org
> > Subject: Re: [PATCH] u-blox: ignore non-AT ttyACM interfaces
> > 
> > On Tue, Apr 10, 2018 at 07:58:07PM +0000, Matthew Starr wrote:
> > > > -----Original Message-----
> > > > From: Dan Williams [mailto:dcbw at redhat.com]
> > > > Sent: Tuesday, April 10, 2018 1:17 PM
> > > > To: Matthew Starr; modemmanager-devel at lists.freedesktop.org
> > > > Subject: Re: [PATCH] u-blox: ignore non-AT ttyACM interfaces
> > > > 
> > > > On Tue, 2018-04-10 at 17:30 +0000, Matthew Starr wrote:
> > > > > For the TOBY-R2, LISA-R2, and LARA-R2, the only valid AT
> > > > > ports are
> > > > > ttyACM0, ttyACM1, and ttyACM2.  All other ttyACM ports cause
> > > > > MM to
> > > > > wait 20-30 seconds probing the port on startup.
> > > > > 
> > > > > Ignoring the non-AT ttyACM ports allows MM to not wait 20-30
> > > > > seconds probing and therefore startup much faster with these
> > 
> > modems.
> > > > 
> > > > Is the "primary log for diagnostics" a QCDM/DIAG port?
> > > 
> > > I am not sure what the usage of the "primary log for diagnostics"
> > > port it
> > 
> > used for.  It is just named that in the datasheet and sometimes
> > called the
> > trace log.  I attempted to connect to it at various baud rates but
> > no response.
> > I have a feeling it is for u-blox only use, maybe for
> > certification.  There is no
> > documentation that I can find that actually tells what the port is
> > used for,
> > how to communicate with it, and how to configure it.  There is the
> > AT+USIO
> > command which is only supported by the u-blox SARA modems which
> > allows
> > some configuration of the log, but it doesn't look like that
> > command is
> > supported by any of the modems I added.
> > 
> > Hi Matthew,
> > 
> > do these modems support the AT+TRACE? command on the AT port? If
> > yes
> > this port is probably an Intel trace port and not a Qualcomm
> > QCDM/DIAG
> > port.
> > 
> > Regards,
> > Reinhard
> 
> It is not documented in the u-blox documentation, but the AT+TRACE?
> command did provide a valid response:
> AT+TRACE?
> +TRACE:
> 0,115200,"ap=0;st=0;db=0;pr=0;bt=0;lt=0;li=0;ga=0;ae=0","DTM",0

Ok, then it's fine to ignore these ports.

Dan

> Matthew
> 
> > 
> > > 
> > > > 
> > > > Also, does the GNSS port spit out NMEA when location services
> > > > are
> > 
> > enabled?
> > > > If so we may want to tag that port (but still ignore it) and
> > > > then
> > > > advertise that port as the "unmanaged" location port.
> > > 
> > > The GNSS port does output NMEA at 9600 baud when location
> > > services are
> > 
> > enabled (like with AT+UGPS).  How would you tag the port and still
> > ignore it?
> > How do you advertise the port as unmanaged?
> > > 
> > > Matthew
> > > 
> > > > 
> > > > Dan
> > > > 
> > > > > ---
> > > > >  plugins/ublox/77-mm-ublox-port-types.rules | 35
> > > > > ++++++++++++++++++++++++++++++
> > > > >  1 file changed, 35 insertions(+)
> > > > > 
> > > > > diff --git a/plugins/ublox/77-mm-ublox-port-types.rules
> > > > > b/plugins/ublox/77-mm-ublox-port-types.rules
> > > > > index cb77f0e0..31128dac 100644
> > > > > --- a/plugins/ublox/77-mm-ublox-port-types.rules
> > > > > +++ b/plugins/ublox/77-mm-ublox-port-types.rules
> > > > > @@ -16,4 +16,39 @@ ATTRS{idVendor}=="1546",
> > > > 
> > > > ATTRS{idProduct}=="1010",
> > > > > ENV{.MM_USBIFNUM}=="02", ENV{  ATTRS{idVendor}=="1546",
> > > > > ATTRS{idProduct}=="1010", ENV{.MM_USBIFNUM}=="04",
> > > > > ENV{ID_MM_PORT_IGNORE}="1"
> > > > >  ATTRS{idVendor}=="1546", ATTRS{idProduct}=="1010",
> > > > > ENV{.MM_USBIFNUM}=="08", ENV{ID_MM_PORT_IGNORE}="1"
> > > > > 
> > > > > +# TOBY-R2 port types
> > > > > +#  ttyACM0 (if #0): primary
> > > > > +#  ttyACM1 (if #2): secondary
> > > > > +#  ttyACM2 (if #4): tertiary
> > > > > +#  ttyACM3 (if #6): GNSS Tunneling (ignore) #  ttyACM4 (if
> > > > > #8):
> > > > > +SIM Access Profile (ignore) #  ttyACM5 (if #10): Primary Log
> > > > > for
> > > > > +diagnostics (ignore) ATTRS{idVendor}=="1546",
> > > > > +ATTRS{idProduct}=="1107",
> > > > > ENV{.MM_USBIFNUM}=="06", ENV{ID_MM_PORT_IGNORE}="1"
> > > > > +ATTRS{idVendor}=="1546", ATTRS{idProduct}=="1107",
> > > > > ENV{.MM_USBIFNUM}=="08", ENV{ID_MM_PORT_IGNORE}="1"
> > > > > +ATTRS{idVendor}=="1546", ATTRS{idProduct}=="1107",
> > > > > ENV{.MM_USBIFNUM}=="0a", ENV{ID_MM_PORT_IGNORE}="1"
> > > > > +
> > > > > +# LARA-R2 port types
> > > > > +#  ttyACM0 (if #0): primary
> > > > > +#  ttyACM1 (if #2): secondary
> > > > > +#  ttyACM2 (if #4): tertiary
> > > > > +#  ttyACM3 (if #6): GNSS Tunneling (ignore) #  ttyACM4 (if
> > > > > #8):
> > > > > +SIM Access Profile (ignore) #  ttyACM5 (if #10): Primary Log
> > > > > for
> > > > > +diagnostics (ignore) ATTRS{idVendor}=="1546",
> > > > > +ATTRS{idProduct}=="110a",
> > > > > ENV{.MM_USBIFNUM}=="06", ENV{ID_MM_PORT_IGNORE}="1"
> > > > > +ATTRS{idVendor}=="1546", ATTRS{idProduct}=="110a",
> > > > > ENV{.MM_USBIFNUM}=="08", ENV{ID_MM_PORT_IGNORE}="1"
> > > > > +ATTRS{idVendor}=="1546", ATTRS{idProduct}=="110a",
> > > > > ENV{.MM_USBIFNUM}=="0a", ENV{ID_MM_PORT_IGNORE}="1"
> > > > > +
> > > > > +# LISA-U2 port types
> > > > > +#  ttyACM0 (if #0): primary
> > > > > +#  ttyACM1 (if #2): secondary
> > > > > +#  ttyACM2 (if #4): tertiary
> > > > > +#  ttyACM3 (if #6): GNSS Tunneling (ignore) #  ttyACM4 (if
> > > > > #8):
> > > > > +Primary Log for diagnostics (ignore) #  ttyACM5 (if #10):
> > > > > +Secondary Log for diagnostics (ignore) #  ttyACM6 (if #12):
> > > > > SAP
> > > > > +(SIM Access
> > > > > +Profile) (ignore) ATTRS{idVendor}=="1546",
> > > > > +ATTRS{idProduct}=="1102",
> > > > > ENV{.MM_USBIFNUM}=="06", ENV{ID_MM_PORT_IGNORE}="1"
> > > > > +ATTRS{idVendor}=="1546", ATTRS{idProduct}=="1102",
> > > > > ENV{.MM_USBIFNUM}=="08", ENV{ID_MM_PORT_IGNORE}="1"
> > > > > +ATTRS{idVendor}=="1546", ATTRS{idProduct}=="1102",
> > > > > ENV{.MM_USBIFNUM}=="0a", ENV{ID_MM_PORT_IGNORE}="1"
> > > > > +ATTRS{idVendor}=="1546", ATTRS{idProduct}=="1102",
> > > > > ENV{.MM_USBIFNUM}=="0c", ENV{ID_MM_PORT_IGNORE}="1"
> > > > > +
> > > > >  LABEL="mm_ublox_port_types_end"
> > > 
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