Usb connectivity android device waveshare adapter

Hi,

I am a new user of the realdash app, i am trying to setup an android tablet as dash wired to a maxxecu street through CAN connection.

for that im using a waveshare USB-CAN A adapter.
when i do connect the adapter to PC, i see the CAN data flowing in the waveshare configuration tool. so there is CAN traffic and connections are okay.

when connecting the adapter to tha tablet, im struggling to get it working properly.

when i connect the adapter to the tablet, the adapter is recognized and realdash automatically boots up when i plug the adapter in. the serial and CAN baud rates set in realdash do match these set to the adapter.

but when i open CAN monitor i dont see any data flowing, the window remains empty.
Sending frames on the CAN bus with realdash works, when i send a can message with realdash i see it on the CAN bus (an additional canalyzer connected to the bus).

in the android settings i did change the default USB settings to data transfer.
i do also see the usb setting “USB controlled by:”
currently this is set to “connected device” but i cannot change it to the tablet itself.

does anybody know, if this can cause my issue? and how to fix this so i can change it?

thanks in advance for the help

Hard to say. You could try another USB-OTG adapter, but they all typically work just fine.

i tried another one, but symptoms are similar.
any ideas what could block realdash from reading CAN frames, but allowing realdash to transmit CAN messages?

No, sorry. I have no idea what could cause this.