OliveBen

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  • in reply to: RNDIS Host not working #13330
    Benjamin FelbrichOliveBen
    Participant

      Hi Aedan and thanks a lot again. We did finally make it work! Thanks a lot, we followed the approach of the bridge, but used bridge-tools.

       

      To be precise I wrote a bash script that is executed at boot time. It removes the IP address from the USB0 interface, sets up a new bridge br0 under the same IP address  and links the USB0 interface to this bridge. So by default we can address the device normally.

      Then I wrote a udev rule that checks for new USB connections of the device STM32MP1. If it detects one, it links the new device via its MAC address to br0.

       

      Works like a charm. Again massive kudos for the support!

      in reply to: RNDIS Host not working #13310
      Benjamin FelbrichOliveBen
      Participant

        Apologies  I made a mistake there. The command I tried is

        ifconfig enxd8de9b838d35 10.42.0.8 up

         

        I verified that the MAC address is of BRK B. The ip address I used is what is configured as a static IP address in BRK B

        in reply to: RNDIS Host not working #13302
        Benjamin FelbrichOliveBen
        Participant

          Hello Aedan and thanks a lot for the thorough explanation. It works! I changed the device tree as you suggested and now. I can see the new gadget in lsusb.
          this is the new dmesg output:

          [ 1567.864660] usb 2-1: new high-speed USB device number 2 using ehci-platform
          [ 1568.173658] rndis_host 2-1:1.0 eth0: register ‘rndis_host’ at usb-5800d000.usbh-ehci-1, RNDIS device, d8:de:9b:83:8d:35
          [ 1568.193069] usbcore: registered new interface driver rndis_host
          [ 1568.260294] rndis_host 2-1:1.0 enxd8de9b838d35: renamed from eth0

          And this is the new lsusb output:

          Bus 002 Device 002: ID 1d6b:0104 Linux Foundation Multifunction Composite Gadget
          Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
          Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
          Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub

          Now I am not sure how to proceed. I followed coloradocarlos suggestion to bring up a new interface using.

          ifconfig enxd8de9b838d3510.42.0.7up

          However when I SSH into that new ip address I am in fact accessing the host BRK A again instead of acessing the peripheral BRK B.
          Could you kindly provide me a hint how to proceed?
          Best
          Benjamin

           

          in reply to: RNDIS Host not working #12993
          Benjamin FelbrichOliveBen
          Participant

            Thank you Carlos,

            Yes it is a USB Type-A connector.
            I do have the same modules enabled as you have (among others of course) and the issue persists.

            One interesting lead might be this:

            When I connect the BRK to my host PC, this is dmesg from the host:

            [21293.581039] usb 1-2: new high-speed USB device number 9 using xhci_hcd
            [21293.729697] usb 1-2: New USB device found, idVendor=1d6b, idProduct=0104, bcdDevice= 1.00
            [21293.729704] usb 1-2: New USB device strings: Mfr=1, Product=2, SerialNumber=3
            [21293.729707] usb 1-2: Product: STM32MP1
            [21293.729710] usb 1-2: Manufacturer: STMicroelectronics
            [21293.729712] usb 1-2: SerialNumber: 002700203239511337383434
            [21293.738493] rndis_host 1-2:1.0 eth0: register ‘rndis_host’ at usb-0000:00:14.0-2, RNDIS device, 58:09:4b:39:9a:e7
            [21293.803092] rndis_host 1-2:1.0 enx58094b399ae7: renamed from eth0

             

            This is how things should work. The host identifies the USB device and then spins up rndis_host

            However, when I connect the peripheral BRK to the host BRK, this is the dmesg from the host BRK:

            [  296.083633] usb 2-1: new high-speed USB device number 2 using ehci-platform
            [  296.285007] usb 2-1: Dual-Role OTG device on non-HNP port
            [  296.289115] usb 2-1: set a_alt_hnp_support failed: -32
            [  296.463623] usb 2-1: new high-speed USB device number 3 using ehci-platform
            [  301.663615] usb 2-1: device descriptor read/64, error -110
            [  317.023670] usb 2-1: device descriptor read/64, error -110

             

            Note the second line ‘Dual-Role OTG device on non-HNP port’…
            This makes me belive that before even running rndis, the USB lane on the host (pins USB_DM1 and USB_DP1) does not support HNP and thus can’t identify the peripheral as such.

            Now the question would be how to enable HNP for this USB connector.

            Do you think restarting usbotg-config on the peripheral would make a change to this HNP problem?

            in reply to: RNDIS Host not working #12992
            Benjamin FelbrichOliveBen
            Participant

              Thank you Carlos,

              Yes it is a USB Type-A connector.
              I do have the same modules enabled as you have (among others of course) and the issue persists.

              One interesting lead might be this:

              When I connect the BRK to my host PC, this is dmesg from the host:

              [21293.581039] usb 1-2: new high-speed USB device number 9 using xhci_hcd
              [21293.729697] usb 1-2: New USB device found, idVendor=1d6b, idProduct=0104, bcdDevice= 1.00
              [21293.729704] usb 1-2: New USB device strings: Mfr=1, Product=2, SerialNumber=3
              [21293.729707] usb 1-2: Product: STM32MP1
              [21293.729710] usb 1-2: Manufacturer: STMicroelectronics
              [21293.729712] usb 1-2: SerialNumber: 002700203239511337383434
              [21293.738493] rndis_host 1-2:1.0 eth0: register ‘rndis_host’ at usb-0000:00:14.0-2, RNDIS device, 58:09:4b:39:9a:e7
              [21293.803092] rndis_host 1-2:1.0 enx58094b399ae7: renamed from eth0

               

              This is how things should work. The host identifies the USB device and then spins up rndis_host

              However, when I connect the peripheral BRK to the host BRK, this is the dmesg from the host BRK:

              [  296.083633] usb 2-1: new high-speed USB device number 2 using ehci-platform
              [  296.285007] usb 2-1: Dual-Role OTG device on non-HNP port
              [  296.289115] usb 2-1: set a_alt_hnp_support failed: -32
              [  296.463623] usb 2-1: new high-speed USB device number 3 using ehci-platform
              [  301.663615] usb 2-1: device descriptor read/64, error -110
              [  317.023670] usb 2-1: device descriptor read/64, error -110

               

              Note the second line ‘Dual-Role OTG device on non-HNP port’…
              This makes me belive that before even running rndis, the USB lane on the host (pins USB_DM1 and USB_DP1) does not support HNP and thus can’t identify the peripheral as such.

              Now the question would be how to enable HNP for this USB connector.

              Do you think restarting usbotg-config on the peripheral would make a change to this HNP problem?

              in reply to: RNDIS Host not working #12989
              Benjamin FelbrichOliveBen
              Participant

                Regarding the kernel modules: yes I baked them into the kernel directly. I assumed they would still show up in lsmod. Here’s the info you requested. Note that rndis_host is missing from drivers/net/usb.

                user@localhost:~$ find /lib/modules/5.10.10/kernel/drivers/usb/gadget -name usb*
                /lib/modules/5.10.10/kernel/drivers/usb/gadget/function/usb_f_ncm.ko
                /lib/modules/5.10.10/kernel/drivers/usb/gadget/function/usb_f_uac1_legacy.ko
                /lib/modules/5.10.10/kernel/drivers/usb/gadget/function/usb_f_hid.ko
                /lib/modules/5.10.10/kernel/drivers/usb/gadget/function/usb_f_uvc.ko
                /lib/modules/5.10.10/kernel/drivers/usb/gadget/function/usb_f_midi.ko
                /lib/modules/5.10.10/kernel/drivers/usb/gadget/function/usb_f_fs.ko
                /lib/modules/5.10.10/kernel/drivers/usb/gadget/function/usb_f_rndis.ko
                /lib/modules/5.10.10/kernel/drivers/usb/gadget/function/usb_f_ecm_subset.ko
                /lib/modules/5.10.10/kernel/drivers/usb/gadget/function/usb_f_uac2.ko
                /lib/modules/5.10.10/kernel/drivers/usb/gadget/function/usb_f_printer.ko
                /lib/modules/5.10.10/kernel/drivers/usb/gadget/function/usb_f_mass_storage.ko
                /lib/modules/5.10.10/kernel/drivers/usb/gadget/function/usb_f_acm.ko
                /lib/modules/5.10.10/kernel/drivers/usb/gadget/function/usb_f_serial.ko
                /lib/modules/5.10.10/kernel/drivers/usb/gadget/function/usb_f_uac1.ko
                /lib/modules/5.10.10/kernel/drivers/usb/gadget/function/usb_f_eem.ko
                /lib/modules/5.10.10/kernel/drivers/usb/gadget/function/usb_f_ecm.ko
                /lib/modules/5.10.10/kernel/drivers/usb/gadget/function/usb_f_ss_lb.ko
                /lib/modules/5.10.10/kernel/drivers/usb/gadget/function/usb_f_obex.ko

                user@localhost:~$ find /lib/modules/5.10.10/kernel/drivers/net/usb/
                /lib/modules/5.10.10/kernel/drivers/net/usb/
                /lib/modules/5.10.10/kernel/drivers/net/usb/lan78xx.ko
                /lib/modules/5.10.10/kernel/drivers/net/usb/r8152.ko

                 

                • This reply was modified 1 year, 11 months ago by Benjamin FelbrichOliveBen.
                in reply to: RNDIS Host not working #12988
                Benjamin FelbrichOliveBen
                Participant

                  Concerning the kernel modules. Yes I baked them into the kernel. Here’s the info you suggested. Note that rndis is missing from the drivers/net/usb directory

                   

                  in reply to: RNDIS Host not working #12987
                  Benjamin FelbrichOliveBen
                  Participant

                    Hi coloradocarlos and thanks for the swift response!

                    so we connect the BRK to the host PC via the regular micro USB connector. Then the BRK has a USB_DM1 and USB_DP1 pin. Together with a GND and +VIN pin we soldered a female USB connector to connect other hardware. It works like a regular USB. I tried connecting other USB devices like cameras before and it worked without a problem. So we don’t need to make use of OTG.

                    Instead of switching between host and client mode, we want the board to be both at the same time: act as a peripheral to the host PC through its main micro USB connector and act as a host to another BRK through the USB_DM1 abd USB_DP1 pins.

                    Does that make sense?

                    Best

                    Ben

                    in reply to: RNDIS Host not working #12985
                    Benjamin FelbrichOliveBen
                    Participant

                      A few notes:

                      the second BRK (let’s call it BRK B), which I connect to the first one (BRK A), is working for sure, bc I can use it normally when connecting to the host PC. So the issue must be with BRK A’s rndis_host capabilities.

                      the dmesg errors also show up on BRK B when I connect a it the other way around. (PC -> BRK B -> BRK A). So they seem to be independent of the rndis_host kernel module.

                      Any help would be greatly appreciated.

                      Thanks!

                    Viewing 9 posts - 1 through 9 (of 9 total)