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Sansa clip+ USB controller

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Echo:
Hi all,
My sansa clip+ (Rockboxed obviously) has a broken headphone jack.
Since they are out of production, and clip jam/sport are not (and probably will not be) supported by Rockbox, I want to try to use USB headphones.
I know that I'll have to do some coding, but first I have to make sure the USB controller on the sansa clip+ supports OTG.
Does anyone know if it is or how can I test it?

saratoga:
I think all USB cores made in the last decade support OTG.  The spec is 15 years old and its only slightly different than normal USB (I think the core just needs one extra pin).

Edit: Although I guess it might be pretty hacky to implement if the sense pin isn't actually wired to the connector.

wodz:

--- Quote from: Echo on September 20, 2016, 03:53:42 AM ---I know that I'll have to do some coding

--- End quote ---
Implementing usb host side of OTG would be HUGE coding effort really.

Echo:

--- Quote from: wodz on September 20, 2016, 03:05:30 PM ---
--- Quote from: Echo on September 20, 2016, 03:53:42 AM ---I know that I'll have to do some coding

--- End quote ---
Implementing USB host side of OTG would be HUGE coding effort really.

--- End quote ---
Well, that would depend on the controller interface. If I'm lucky, the send/recv interfaces are the same. If not - I'll probably have to find another way


--- Quote from: saratoga on September 20, 2016, 02:31:35 PM ---Edit: Although I guess it might be pretty hacky to implement if the sense pin isn't actually wired to the connector.

--- End quote ---
Any idea how to check it without opening the casing of the device? After all, if I open the device, I might as well replace the headphone jack.
If it's not connected I have no idea how to implement this.

Thank you very much

gomezz:
Does not the presence of Car Adaptor mode in Settings for the Clip+ indicate that this *is* supported?

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