Greetings,
I'm trying to find the simplest way to develop a bulk mode gadget that
exposes a standard userland IO interface. I've not been able to find
anything suitable but if such a beast does exist please do point me in the
right direction. Failing that please read on.
The appliance collects da
Hi and thanks
> 3.4??? sorry, you're on your own. You need to ask for support from whoever
forces you to stay on this kernel.
Absolutely but sadly it is the all-important camera interface which is
completely missing from mainline.
That said I have GadgetFS working to the extent it is showing up
Hello and thanks,
> You should use the serial (tty) interface for this (see f_serial.c / serial.c)
Not keen on that for binary data.
> No. g_zero is meant only for testing purposes.
Indeed.
Problem is looking solved using GadgetFS working on the target board.
Promise my next set of USB questi
I'm obviously missing something here but am not quite sure what.
My usermode code* is set up to emulate an existing FX3 device. Bulk reads
and writes are all fine as are vendor-specific commands that are host to
device. However anything that is device to host never appears on the wire.
The gene
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 v
Hello Alan.
> Plenty of things could affect it. Without knowing more about your system, I
> can't be more specific. For example, what UDC
> driver are you using?
Ah 😊. It's an ancient (3.4.x*) sunxi_usb_hdc running on an AllWinner H3.
> And have you tried testing your program with the dummy-
