Re: uvcvideo: Trying to lower the URB buffers on eMPIA minicam

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Selon Laurent Pinchart <laurent.pinchart@xxxxxxxxxxxxxxxx>:

> Thank you. I'll update the supported devices list on the uvcvideo website.
> Could you please give me the exact model name of the camera ?

The product description is here:

http://www.amazon.fr/dp/B00A487TPC/ref=pe_205631_30430471_3p_M3_dp_1

That is: Supereyes from XCSource know on Amazon as Microscope USB Cam.

>
> Yes, that looks good. Just make sure you only hack the endpoint bandwidth for
> the webcam and not for the other USB devices.
>

I'm trying this one:

---------------------------------------
        if (to_usb_device(ddev)->speed == USB_SPEED_HIGH)
        {
                unsigned maxp;

                maxp = usb_endpoint_maxp(&endpoint->desc) & 0x07ff;
                if (maxp == 912) endpoint->desc.wMaxPacketSize =
cpu_to_le16(256);
                dev_warn(ddev, "Hack 912 to 256 downsize endpoint by Nunux");
        }
---------------------------------------

That seem to trigger ... but not working ... and not showing is lsusb ...



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