G1000 XFD not enumerating as /dev/ttyACM0

[mikeklinker129]

Are there additional instructions for installing the G1000 XFD on linux?
The build and installation to X-Plane 11 works, but it is not connecting to the display.
Running Ubuntu 22, the device is listed under lsusb but I am not seeing any additional /dev/tty* devices when I plug it in. Does the display require specific drivers to work with Ubuntu?

[hamarituc]

My hardware does not require special drivers beside the usb_cdc driver shipped in the Linux kernel. You should see something like this then plugging in the USB port of the G1000:

[So Okt 16 22:18:06 2022] usb 1-1: new full-speed USB device number 11 using xhci_hcd
[So Okt 16 22:18:06 2022] usb 1-1: New USB device found, idVendor=32b6, idProduct=02f8, bcdDevice= 0.00
[So Okt 16 22:18:06 2022] usb 1-1: New USB device strings: Mfr=1, Product=2, SerialNumber=0
[So Okt 16 22:18:06 2022] usb 1-1: Product: RealSimGear G1000XFDv5
[So Okt 16 22:18:06 2022] usb 1-1: Manufacturer: RealSimGear Inc
[So Okt 16 22:18:06 2022] cdc_acm 1-1:1.0: ttyACM0: USB ACM device

But it seems there is a USB ID clash in Ubuntu 22 which prevents USB CDC devices from being detected: https://askubuntu.com/questions/1403705/dev-ttyusb0-not-present-in-ubuntu-22-04. Although the USB IDs differ, it may be the worth checking if the solution there helps in this case, too.

[mikeklinker129]

Thanks @hamarituc
This is what I am seeing, indicating that my computer knows the G1000 is there. Let me dig into seeing if the udev rules are overwriting it somehow...

mike@mike-desktop:~$ lsusb
Bus 002 Device 003: ID 046d:c52b Logitech, Inc. Unifying Receiver
Bus 002 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub
Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 001 Device 005: ID 046d:c215 Logitech, Inc. Extreme 3D Pro
Bus 001 Device 004: ID 05e3:0610 Genesys Logic, Inc. Hub
Bus 001 Device 003: ID 413c:2113 Dell Computer Corp. KB216 Wired Keyboard
Bus 001 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 004 Device 002: ID 0846:9053 NetGear, Inc. A6210
Bus 004 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 003 Device 002: ID 32b6:0016  RSG G1000 XFD BL
Bus 003 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub

[mikeklinker129]

This is all I see in dmesg... I dont get the USB ACM Device

[    1.534388] usb 3-4: New USB device found, idVendor=32b6, idProduct=0016, bcdDevice= 2.54
[    1.534396] usb 3-4: New USB device strings: Mfr=0, Product=2, SerialNumber=0
[    1.534399] usb 3-4: Product: RSG G1000 XFD BL

[hamarituc]

It seems like the cdc_acm driver is not loaded. You can check this with dmesg | grep cdc_acm. The command should generate an output like this.

# dmesg | grep cdc_acm
[    1.147304] usbcore: registered new interface driver cdc_acm
[    1.147306] cdc_acm: USB Abstract Control Model driver for USB modems and ISDN adapters

If not, try sudo modprobe cdc_acm or sudo modprobe cdc-acm to load the driver (I'm unsure about the right notation, as I prefer to compile this module statically into the kernel in contrast to loading it as a module).

[mikeklinker129]

So loading the driver sudo modprobe cdc_acm has no effect, and with udev rules I can make the screen show up, but not as part of the dialout group, or anything that will allow me to open a serial port.

SUBSYSTEMS=="usb", ATTRS{idVendor}=="32b6", ATTRS{idProduct}=="0016", \
     GROUP:="tty", \
     MODE:="0666", \
     SYMLINK+="ttyACM%n" 

would yield:

....
crw--w---- 1 root tty     4,  7 Oct 23 17:48 /dev/tty7
crw--w---- 1 root tty     4,  8 Oct 23 17:48 /dev/tty8
crw--w---- 1 root tty     4,  9 Oct 23 17:48 /dev/tty9
lrwxrwxrwx 1 root root       15 Oct 23 21:29 /dev/ttyACM3 -> bus/usb/001/014
crw------- 1 root root    5,  3 Oct 23 17:48 /dev/ttyprintk
crw-rw---- 1 root dialout 4, 64 Oct 23 17:48 /dev/ttyS0
crw-rw---- 1 root dialout 4, 65 Oct 23 17:48 /dev/ttyS1
...

Diving into why the cdc_acm driver won't pick up the device:
This documentation says that if you see cls=ff(vend) in /sys/kernel/debug/usb under the device you are SOL trying to use cdc_acm

Under /sys/kernel/debug/usb, this is the screen:

T:  Bus=01 Lev=03 Prnt=04 Port=02 Cnt=02 Dev#= 12 Spd=12   MxCh= 0
D:  Ver= 1.10 Cls=ff(vend.) Sub=00 Prot=00 MxPS= 8 #Cfgs=  1
P:  Vendor=32b6 ProdID=0016 Rev= 2.54
S:  Product=RSG G1000 XFD BL
C:* #Ifs= 1 Cfg#= 1 Atr=80 MxPwr= 98mA
I:* If#= 0 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=01 Prot=02 Driver=(none)
E:  Ad=82(I) Atr=02(Bulk) MxPS=  32 Ivl=0ms
E:  Ad=02(O) Atr=02(Bulk) MxPS=  32 Ivl=0ms
E:  Ad=81(I) Atr=03(Int.) MxPS=   8 Ivl=1ms

Similarly, with lsusb -t the driver listed is null:

mike@mike-desktop:~/ainstein_testing$ lsusb -t
....
/:  Bus 01.Port 1: Dev 1, Class=root_hub, Driver=ehci-pci/2p, 480M
    |__ Port 1: Dev 2, If 0, Class=Hub, Driver=hub/6p, 480M
        |__ Port 5: Dev 3, If 0, Class=Human Interface Device, Driver=usbhid, 1.5M
        |__ Port 5: Dev 3, If 1, Class=Human Interface Device, Driver=usbhid, 1.5M
        |__ Port 6: Dev 4, If 0, Class=Hub, Driver=hub/4p, 480M
            |__ Port 3: Dev 10, If 0, Class=Vendor Specific Class, Driver=, 12M

where Port 3: Dev 10 is the G1000.

And lsusb -v yields this info on the G1000:

Bus 003 Device 017: ID 32b6:0016  RSG G1000 XFD BL
Device Descriptor:
  bLength                18
  bDescriptorType         1
  bcdUSB               1.10
  bDeviceClass          255 Vendor Specific Class
  bDeviceSubClass         0 
  bDeviceProtocol         0 
  bMaxPacketSize0         8
  idVendor           0x32b6 
  idProduct          0x0016 
  bcdDevice            2.54
  iManufacturer           0 
  iProduct                2 RSG G1000 XFD BL
  iSerial                 0 
  bNumConfigurations      1
  Configuration Descriptor:
    bLength                 9
    bDescriptorType         2
    wTotalLength       0x0027
    bNumInterfaces          1
    bConfigurationValue     1
    iConfiguration          0 
    bmAttributes         0x80
      (Bus Powered)
    MaxPower               98mA
    Interface Descriptor:
      bLength                 9
      bDescriptorType         4
      bInterfaceNumber        0
      bAlternateSetting       0
      bNumEndpoints           3
      bInterfaceClass       255 Vendor Specific Class
      bInterfaceSubClass      1 
      bInterfaceProtocol      2 
      iInterface              0 
      Endpoint Descriptor:
        bLength                 7
        bDescriptorType         5
        bEndpointAddress     0x82  EP 2 IN
        bmAttributes            2
          Transfer Type            Bulk
          Synch Type               None
          Usage Type               Data
        wMaxPacketSize     0x0020  1x 32 bytes
        bInterval               0
      Endpoint Descriptor:
        bLength                 7
        bDescriptorType         5
        bEndpointAddress     0x02  EP 2 OUT
        bmAttributes            2
          Transfer Type            Bulk
          Synch Type               None
          Usage Type               Data
        wMaxPacketSize     0x0020  1x 32 bytes
        bInterval               0
      Endpoint Descriptor:
        bLength                 7
        bDescriptorType         5
        bEndpointAddress     0x81  EP 1 IN
        bmAttributes            3
          Transfer Type            Interrupt
          Synch Type               None
          Usage Type               Data
        wMaxPacketSize     0x0008  1x 8 bytes
        bInterval               1
Device Status:     0x0000
  (Bus Powered)

So... are they shipping new screens with a device that requires a different driver?

[hamarituc]

So... are they shipping new screens with a device that requires a different driver?

It seems like your device is different from mine. My display reports as

# lsusb -t
/:  Bus 01.Port 1: Dev 1, Class=root_hub, Driver=xhci_hcd/12p, 480M
    |__ Port 1: Dev 110, If 1, Class=CDC Data, Driver=cdc_acm, 12M
    |__ Port 1: Dev 110, If 2, Class=Vendor Specific Class, Driver=, 12M
    |__ Port 1: Dev 110, If 0, Class=Communications, Driver=cdc_acm, 12M

# lsusb -v -s 01.1:110

Bus 001 Device 110: ID 32b6:02f8 RealSimGear Inc RealSimGear G1000XFDv5
Device Descriptor:
  bLength                18
  bDescriptorType         1
  bcdUSB               2.00
  bDeviceClass            0 
  bDeviceSubClass         0 
  bDeviceProtocol         0 
  bMaxPacketSize0         8
  idVendor           0x32b6 
  idProduct          0x02f8 
  bcdDevice            0.00
  iManufacturer           1 RealSimGear Inc
  iProduct                2 RealSimGear G1000XFDv5
  iSerial                 0 
  bNumConfigurations      1
  Configuration Descriptor:
    bLength                 9
    bDescriptorType         2
    wTotalLength       0x0054
    bNumInterfaces          3
    bConfigurationValue     1
    iConfiguration          0 
    bmAttributes         0x80
      (Bus Powered)
    MaxPower              100mA
    Interface Association:
      bLength                 8
      bDescriptorType        11
      bFirstInterface         0
      bInterfaceCount         2
      bFunctionClass          2 Communications
      bFunctionSubClass       2 Abstract (modem)
      bFunctionProtocol       1 AT-commands (v.25ter)
      iFunction               0 
    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 Union:
        bMasterInterface        0
        bSlaveInterface         1 
      CDC Call Management:
        bmCapabilities       0x00
        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              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     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
    Interface Descriptor:
      bLength                 9
      bDescriptorType         4
      bInterfaceNumber        2
      bAlternateSetting       0
      bNumEndpoints           0
      bInterfaceClass       255 Vendor Specific Class
      bInterfaceSubClass      5 
      bInterfaceProtocol      0 
      iInterface              0 
Device Status:     0x0000
  (Bus Powered)

# cat /sys/kernel/debug/usb/devices
T:  Bus=01 Lev=01 Prnt=01 Port=00 Cnt=01 Dev#=110 Spd=12   MxCh= 0
D:  Ver= 2.00 Cls=00(>ifc ) Sub=00 Prot=00 MxPS= 8 #Cfgs=  1
P:  Vendor=32b6 ProdID=02f8 Rev= 0.00
S:  Manufacturer=RealSimGear Inc
S:  Product=RealSimGear G1000XFDv5
C:* #Ifs= 3 Cfg#= 1 Atr=80 MxPwr=100mA
A:  FirstIf#= 0 IfCount= 2 Cls=02(comm.) Sub=02 Prot=01
I:* If#= 0 Alt= 0 #EPs= 1 Cls=02(comm.) Sub=02 Prot=01 Driver=cdc_acm
E:  Ad=83(I) Atr=03(Int.) MxPS=  64 Ivl=10ms
I:* If#= 1 Alt= 0 #EPs= 2 Cls=0a(data ) Sub=00 Prot=00 Driver=cdc_acm
E:  Ad=01(O) Atr=02(Bulk) MxPS=  64 Ivl=0ms
E:  Ad=82(I) Atr=02(Bulk) MxPS=  64 Ivl=0ms
I:* If#= 2 Alt= 0 #EPs= 0 Cls=ff(vend.) Sub=05 Prot=00 Driver=(none)

Whats the serial number of your device?

Could you confirm it works on another linux box (or maybe windows) and provides a serial port?

Reviewing the firmware update information on the website (https://help.realsimgear.com/en/articles/4490455-realsimgear-firmware-utility-windows-only) reveals they are using avrdude to flash the firmware. This is an indicator that they don't use a distinct USB to serial converter, but instead implement the serial device in software. So in theory there should be no difference.

[dna1969]

Did you made any progress on this issue ? :) I face exactly the same problems