Re: COEX GPS (model UBX-M8030 IC) on Raspberry Pi 4 Model B 2018 connection issues

[Aranza Shaccid Leon]

Hello and good afternoon!

Here is the lsusb -v information:

pi@clover-1060:~ $ lsusb -v

Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Couldn't open device, some information will be missing
Device Descriptor:
  bLength                18
  bDescriptorType         1
  bcdUSB               3.00
  bDeviceClass            9 Hub
  bDeviceSubClass         0
  bDeviceProtocol         3
  bMaxPacketSize0         9
  idVendor           0x1d6b Linux Foundation
  idProduct          0x0003 3.0 root hub
  bcdDevice            5.10
  iManufacturer           3
  iProduct                2
  iSerial                 1
  bNumConfigurations      1
  Configuration Descriptor:
    bLength                 9
    bDescriptorType         2
    wTotalLength       0x001f
    bNumInterfaces          1
    bConfigurationValue     1
    iConfiguration          0
    bmAttributes         0xe0
      Self Powered
      Remote Wakeup
    MaxPower                0mA
    Interface Descriptor:
      bLength                 9
      bDescriptorType         4
      bInterfaceNumber        0
      bAlternateSetting       0
      bNumEndpoints           1
      bInterfaceClass         9 Hub
      bInterfaceSubClass      0
      bInterfaceProtocol      0 Full speed (or root) hub
      iInterface              0
      Endpoint Descriptor:
        bLength                 7
        bDescriptorType         5
        bEndpointAddress     0x81  EP 1 IN
        bmAttributes            3
          Transfer Type            Interrupt
          Synch Type               None
          Usage Type               Data
        wMaxPacketSize     0x0004  1x 4 bytes
        bInterval              12
        bMaxBurst               0

Bus 001 Device 004: ID 26ac:0012
Couldn't open device, some information will be missing
Device Descriptor:
  bLength                18
  bDescriptorType         1
  bcdUSB               2.00
  bDeviceClass            2 Communications
  bDeviceSubClass         0
  bDeviceProtocol         0
  bMaxPacketSize0        64
  idVendor           0x26ac
  idProduct          0x0012
  bcdDevice            1.01
  iManufacturer           1
  iProduct                2
  iSerial                 3
  bNumConfigurations      1
  Configuration Descriptor:
    bLength                 9
    bDescriptorType         2
    wTotalLength       0x003e
    bNumInterfaces          2
    bConfigurationValue     1
    iConfiguration          4
    bmAttributes         0x80
      (Bus Powered)
    MaxPower              500mA
    Interface Descriptor:
      bLength                 9
      bDescriptorType         4
      bInterfaceNumber        0
      bAlternateSetting       0
      bNumEndpoints           1
      bInterfaceClass         2 Communications
      bInterfaceSubClass      2 Abstract (modem)
      bInterfaceProtocol      1 AT-commands (v.25ter)
      iInterface              0
      CDC Header:
        bcdCDC               1.10
      CDC ACM:
        bmCapabilities       0x06
          sends break
          line coding and serial state
      CDC Call Management:
        bmCapabilities       0x03
          call management
          use DataInterface
        bDataInterface          1
      Endpoint Descriptor:
        bLength                 7
        bDescriptorType         5
        bEndpointAddress     0x81  EP 1 IN
        bmAttributes            3
          Transfer Type            Interrupt
          Synch Type               None
          Usage Type               Data
        wMaxPacketSize     0x0040  1x 64 bytes
        bInterval              10
    Interface Descriptor:
      bLength                 9
      bDescriptorType         4
      bInterfaceNumber        1
      bAlternateSetting       0
      bNumEndpoints           2
      bInterfaceClass        10 CDC Data
      bInterfaceSubClass      0
      bInterfaceProtocol      0
      iInterface              0
      Endpoint Descriptor:
        bLength                 7
        bDescriptorType         5
        bEndpointAddress     0x03  EP 3 OUT
        bmAttributes            2
          Transfer Type            Bulk
          Synch Type               None
          Usage Type               Data
        wMaxPacketSize     0x0040  1x 64 bytes
        bInterval               1
      Endpoint Descriptor:
        bLength                 7
        bDescriptorType         5
        bEndpointAddress     0x82  EP 2 IN
        bmAttributes            2
          Transfer Type            Bulk
          Synch Type               None
          Usage Type               Data
        wMaxPacketSize     0x0040  1x 64 bytes
        bInterval               1

Bus 001 Device 003: ID 1546:01a8 U-Blox AG [u-blox 8]
Couldn't open device, some information will be missing
Device Descriptor:
  bLength                18
  bDescriptorType         1
  bcdUSB               1.10
  bDeviceClass            2 Communications
  bDeviceSubClass         0
  bDeviceProtocol         0
  bMaxPacketSize0        64
  idVendor           0x1546 U-Blox AG
  idProduct          0x01a8 [u-blox 8]
  bcdDevice            3.01
  iManufacturer           1
  iProduct                2
  iSerial                 0
  bNumConfigurations      1
  Configuration Descriptor:
    bLength                 9
    bDescriptorType         2
    wTotalLength       0x003e
    bNumInterfaces          2
    bConfigurationValue     1
    iConfiguration          0
    bmAttributes         0xc0
      Self Powered
    MaxPower              100mA
    Interface Descriptor:
      bLength                 9
      bDescriptorType         4
      bInterfaceNumber        0
      bAlternateSetting       0
      bNumEndpoints           1
      bInterfaceClass         2 Communications
      bInterfaceSubClass      2 Abstract (modem)
      bInterfaceProtocol      1 AT-commands (v.25ter)
      iInterface              0
      CDC Header:
        bcdCDC               1.10
      CDC ACM:
        bmCapabilities       0x02
          line coding and serial state
      CDC Call Management:
        bmCapabilities       0x03
          call management
          use DataInterface
        bDataInterface          1
      Endpoint Descriptor:
        bLength                 7
        bDescriptorType         5
        bEndpointAddress     0x83  EP 3 IN
        bmAttributes            3
          Transfer Type            Interrupt
          Synch Type               None
          Usage Type               Data
        wMaxPacketSize     0x0040  1x 64 bytes
        bInterval             255
    Interface Descriptor:
      bLength                 9
      bDescriptorType         4
      bInterfaceNumber        1
      bAlternateSetting       0
      bNumEndpoints           2
      bInterfaceClass        10 CDC Data
      bInterfaceSubClass      0
      bInterfaceProtocol    255 Vendor specific
      iInterface              0
      Endpoint Descriptor:
        bLength                 7
        bDescriptorType         5
        bEndpointAddress     0x01  EP 1 OUT
        bmAttributes            2
          Transfer Type            Bulk
          Synch Type               None
          Usage Type               Data
        wMaxPacketSize     0x0040  1x 64 bytes
        bInterval               0
      Endpoint Descriptor:
        bLength                 7
        bDescriptorType         5
        bEndpointAddress     0x82  EP 2 IN
        bmAttributes            2
          Transfer Type            Bulk
          Synch Type               None
          Usage Type               Data
        wMaxPacketSize     0x0040  1x 64 bytes
        bInterval               0

Bus 001 Device 002: ID 2109:3431 VIA Labs, Inc. Hub
Couldn't open device, some information will be missing
Device Descriptor:
  bLength                18
  bDescriptorType         1
  bcdUSB               2.10
  bDeviceClass            9 Hub
  bDeviceSubClass         0
  bDeviceProtocol         1 Single TT
  bMaxPacketSize0        64
  idVendor           0x2109 VIA Labs, Inc.
  idProduct          0x3431 Hub
  bcdDevice            4.21
  iManufacturer           0
  iProduct                1
  iSerial                 0
  bNumConfigurations      1
  Configuration Descriptor:
    bLength                 9
    bDescriptorType         2
    wTotalLength       0x0019
    bNumInterfaces          1
    bConfigurationValue     1
    iConfiguration          0
    bmAttributes         0xe0
      Self Powered
      Remote Wakeup
    MaxPower              100mA
    Interface Descriptor:
      bLength                 9
      bDescriptorType         4
      bInterfaceNumber        0
      bAlternateSetting       0
      bNumEndpoints           1
      bInterfaceClass         9 Hub
      bInterfaceSubClass      0
      bInterfaceProtocol      0 Full speed (or root) hub
      iInterface              0
      Endpoint Descriptor:
        bLength                 7
        bDescriptorType         5
        bEndpointAddress     0x81  EP 1 IN
        bmAttributes            3
          Transfer Type            Interrupt
          Synch Type               None
          Usage Type               Data
        wMaxPacketSize     0x0001  1x 1 bytes
        bInterval              12

Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Couldn't open device, some information will be missing
Device Descriptor:
  bLength                18
  bDescriptorType         1
  bcdUSB               2.00
  bDeviceClass            9 Hub
  bDeviceSubClass         0
  bDeviceProtocol         1 Single TT
  bMaxPacketSize0        64
  idVendor           0x1d6b Linux Foundation
  idProduct          0x0002 2.0 root hub
  bcdDevice            5.10
  iManufacturer           3
  iProduct                2
  iSerial                 1
  bNumConfigurations      1
  Configuration Descriptor:
    bLength                 9
    bDescriptorType         2
    wTotalLength       0x0019
    bNumInterfaces          1
    bConfigurationValue     1
    iConfiguration          0
    bmAttributes         0xe0
      Self Powered
      Remote Wakeup
    MaxPower                0mA
    Interface Descriptor:
      bLength                 9
      bDescriptorType         4
      bInterfaceNumber        0
      bAlternateSetting       0
      bNumEndpoints           1
      bInterfaceClass         9 Hub
      bInterfaceSubClass      0
      bInterfaceProtocol      0 Full speed (or root) hub
      iInterface              0
      Endpoint Descriptor:
        bLength                 7
        bDescriptorType         5
        bEndpointAddress     0x81  EP 1 IN
        bmAttributes            3
          Transfer Type            Interrupt
          Synch Type               None
          Usage Type               Data
        wMaxPacketSize     0x0004  1x 4 bytes
        bInterval              12

I initially ran the command sudo apt-get install gpsd gpsd-clients which installed the 3.17 gpsd version as a different link recommended. 

To get gpspipe to work, would I have to update my gpsd version? If yes, what is the simplest method to do so (is it using tarbell or wget) and would I have to remove my previous gpsd version?

I'm currently looking at this link: Index of /releases/gpsd/ (gnu.org)    for the new versions and I have gpsd-3.22.zip in my files. I'm also attempting to follow these instructions from Updating GPSD (satsignal.eu) , in Archive 2 for removing my older version and installing a newer one.

The commands were:

• sudo apt remove gpsd
• sudo apt purge gpsd
• sudo rm /local/bin/*gps*
• sudo apt-get update
• sudo apt-get dist-upgrade
• sudo reboot

May I ask why I need these programs installed as well? 

• sudo apt-get install scons libncurses-dev python-dev pps-tools
• sudo apt-get install git-core
• sudo apt-get install build-essential manpages-dev pkg-config

• git clone https://gitlab.com/gpsd/gpsd.git  (could I instead use the command wget https://gitlab.com/gpsd/gpsd.git)
• cd gpsd

If no, how should I update gpspipe?

Since I currently have my GPS still attached to the Raspberry Pi via USB, may I ask if all these details being gathered are to help identify the GPS once I've attached to the flight controller instead and set a connection path to it then?

Thank you for your time and consideration.

Sincerely,

Leon

On Fri, Jul 23, 2021 at 6:21 AM Mike Simpson <mikie.simpson@gmail.com> wrote:

CAUTION: This email originated from outside of the PNW environment. Do not click links or open attachments unless you recognize the sender and know the content is safe.


Systemd(oing too much) seems to grab port 2947 on Raspbian and I haven’t worked out the necessary incantation to stop it doing so.

> On 22 Jul 2021, at 21:20, Gary E. Miller <gem@rellim.com> wrote:
>
> Yo Aranza!
>
>> On Thu, 22 Jul 2021 15:00:24 -0700
>> Aranza Shaccid Leon <leon18@pnw.edu> wrote:
>>
>> I used udev rules in order to connect my GPS when I had it on a
>> separate USB connection (had to disconnect from the flight controller
>> for this to work though) and in the rules, I named it ttyGPS.
>
> That standard symlink name is "/dev/gps0".  Yours works, just adds
> a bit of confusion.
>
>> The gpsdebuginfo above is with the gpsd socket/gpsd disabled and with
>> the GPS plugged into only the flight controller.
>
> Which, of course, is not the configuration you could not get to work
> and raised an issue about.
>
>> This is the gpsdebuginfo with the gpsd socket/gpsd enabled (is this
>> what you mean be get gpsd running?)
>
> No.  I have always, firmly, railed aginst enabling gpsd under
> systemd(umb).  Which is why you were instructed to turn it off, and did
> in fact urn it off.
>
>
>> and the GPS plugged into only the USB.
>
> I take that to mean NOT also plugged into the flight controller, so
> once again NOT the configuration you want and that we were trying to debug?
>
>> /usr/bin/lsof
>> + lsof -iTCP:2947 -s TCP:LISTEN
>> COMMAND PID USER   FD   TYPE DEVICE SIZE/OFF NODE NAME
>> systemd   1 root   70u  IPv6  16942    0t0  TCP localhost:gpsd (LISTEN)
>> systemd   1 root   75u  IPv4  16944    0t0  TCP localhost:gpsd (LISTEN)
>> gpsd    735 gpsd    4u  IPv6  16942    0t0  TCP localhost:gpsd (LISTEN)
>> gpsd    735 gpsd    5u  IPv4  16944    0t0  TCP localhost:gpsd (LISTEN)
>
> That is very odd.  Somehow systemd(roll) and gpsd both have port 2947 open?
> Which is why I don't do systemd(umber).
>
>> + lsof -c gpsd
>> + sed -nE 1p;/CHR|LISTEN/p
>> COMMAND    PID USER   FD   TYPE     DEVICE SIZE/OFF  NODE NAME
>> gpsd       735 gpsd    0u   CHR        1,3    0t0     5 /dev/null
>> gpsd       735 gpsd    1u   CHR        1,3    0t0     5 /dev/null
>> gpsd       735 gpsd    2u   CHR        1,3    0t0     5 /dev/null
>> gpsd       735 gpsd    4u  IPv6      16942    0t0   TCP localhost:gpsd (LISTEN)
>> gpsd       735 gpsd    5u  IPv4      16944    0t0   TCP localhost:gpsd (LISTEN)
>> gpsdebugi 1005 root    0u   CHR      136,0    0t0     3 /dev/pts/0
>
> Notice that gpsd is NOT conencted to your GPS.  Your systemd(umber)
> config is broken.  But I can't help you there since I do not do
> systemd(umbest).
>
>> + ps ax
>> + sed -nE 1p;/gpsd/p
>>  PID TTY      STAT   TIME COMMAND
>>  735 ?        S<s    0:00 /usr/sbin/gpsd /dev/ttyGPS
>
> You tried to get it to open /dev/ttyGPS, but it failed.  See above.
>
> Since you used a non-standard name, the debug output is less helpful.
>
>> Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
>> Bus 001 Device 003: ID 26ac:0012
>
> You still did not answer my question on what 26ac:0012 is, it is
> not obeying the USB standard...
>
>> Bus 001 Device 004: ID 1546:01a8 U-Blox AG [u-blox 8]
>
> At least the u-blox is plugged in.
>
> But I can't help you when systemd(umpkopf) is controlling gpsd.
>
>
> RGDS
> GARY
> ---------------------------------------------------------------------------
> Gary E. Miller Rellim 109 NW Wilmington Ave., Suite E, Bend, OR 97703
>    gem@rellim.com  Tel:+1 541 382 8588
>
>        Veritas liberabit vos. -- Quid est veritas?
>    "If you can't measure it, you can't improve it." - Lord Kelvin