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Hey all, i've been trying to get a YUV2 demo to work on the FX3's memory, so far i've successfully modified the MJPEG demo to output a 96x96 yuv2 image, and on windows the camera preview does work (i see my 4 frame sample), but starting a stream does not work properly and crashes the app.
When running this on linux, it does not work at all, v4L2 reports:

VIDIOC_STREAMON returned -1 (Input/output error)

 Looking at wireshark, the ONLY difference i can spot between MJPEG and YUV2 (besides the config change in the format and frame descriptors obviously) are a wrong bAlternate setting requested by the host to the FX3 when the YUV2 fw is loaded, which causes the isochronous stream to never start:

This should be 1 instead, like in this mjpeg capture of the same command which does start streaming:

This causes an issue with this peice of code and never starts the stream:

            /* Start the video stream if the streaming interface has been selected. */
            if ((interface == CY_FX_UVC_INTERFACE_VS) && (altSetting != 0))
            {
                CyU3PDebugPrint (4, "STARTS\r\n", evtype);
                CyFxUVCApplnStart ();
            }
            break;

I've attached the wireshark log for both the usb descriptors, to show that their endpoint configs are the exact same (attached as C files because the forum doesn't take .txt), besides cyfxuvcdscr.c and the frames themselves nothing has been modified from the sample. I'm on the latest version of the SDK and the working mjpeg demo has been compiled on the same sdk as the non working one.

Any clue as to why this might be occuring?