Hello and thanks > Do you mean: Any control-IN data (device to host) never appears on the wire? After all, you said that bulk reads and writes > are fine. Correct. Data sent via the bulk endpoint is visible. Data sent device to host on EP0 in response to my vendor commands is not. Now this is very weird as the host is obviously getting enough traffic on EP0 to acquire descriptors and strings. I am mystified. Is there anything internally that might affect EP0 writes once setup/configuration is complete? Can you suggest any obvious places further down the stack where I can put some trace/debug code? This board is a PITA to run under a debugger. > Yes, that is how it should work. The data is supposed to appear on the bus. Yes, as expected. > ep0 is represented by the original gadget file (/dev/gadget/"UDC name"): Ah, of course. I appreciate your exceptionally prompt response. Many thanks. Jerry. -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
