On Tue, Feb 6, 2018 at 8:55 AM, Felipe Balbi
<felipe.ba...@linux.intel.com> wrote:
>
> Hi,
>
> Ran Shalit <ransha...@gmail.com> writes:
>> Hello,
>>
>> I check code in:
>> https://elixir.free-electrons.com/linux/v3.3/source/drivers/usb/gadget/f_mass_storage.c
>> but I see no API usage of DMA, yet it is being mentioned as if it is used.
>
> but it is used. It's just managed by the UDC driver (dwc3, musb,
> chipidea, Renesas, etc)
>
Just to be sure,
can I assume that other usb gadget drivers are using DMA (including
gadgetfs for userspace driver) ?
And it is also correct for host drivers  (such as camera device ) ?

Thanks,
Ran

> --
> balbi
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