Hey, I'm trying to use a composite gadget on a embedded linux platform using configfs. The kernel-doc was fine and I can now create my gadgets as needed. One big drawback is that the host_addr and dev_addr change on every start. So I tried to change them, without success: * Most web documentation applies only to g_ether (eg setting module/kernel parameters) * ${CONFIGFS}/usb_gadget/g1/functions/rndis.0/host_addr reports EBUSY if I try to write it * I checked the sources of my kernel (4.19) and the current ones to check if I can somehow add a MAC to the dtb of my system: It seems that there is no such binding. Can sb point me the right way to show me what I need to do (or in what order I have to create the entries in the configfs) to manually set MAC addresses? Best regards, Olli