Re: What to use for usb transfer from gadget to host?

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On Thu, Mar 20, 2014 at 10:11:42PM +0800, tzippy@xxxxxx wrote:
> Hello!
> 
> I am developing on a phyFlex iMx.6 and want to send data via USB to a
> Host connected via the OTG port.
> The data is images from an image sensor, so I need a high performance (USB 2.0).

How is your image sensor driver implemented?
If it is in v4l2 framework, then you can send your data to USB host
using uvc framework. See: drivers/usb/gadget/webcam.c

The above would be be the standard way of doing such application.

Regards
Pratyush

> I am familiar with USB on the host side, but not the gadget side.
> What's the best/easiest way to implement a simple 2 endpoints
> communication with high data rates?
> During my search I came across functionfs, gadgetfs, configfs and
> libusbg. Can you recommend one of them that suits my needs?
> Thank you so much!
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