Hi,
On Wed, Oct 30, 2013 at 10:06:16AM -0700, David Cohen wrote:
> Due to USB controllers may have different restrictions, usb gadget layer
> needs to provide a generic way to inform gadget functions to complain
> with non-standard requirements.
>
> This patch adds 'quirk_ep_out_aligned_size' field to struct usb_gadget
> to inform when controller's epout requires buffer size to be aligned to
> MaxPacketSize.
>
> Signed-off-by: David Cohen <david.a.cohen@xxxxxxxxxxxxxxx>
> ---
> include/linux/usb/gadget.h | 3 +++
> 1 file changed, 3 insertions(+)
>
> diff --git a/include/linux/usb/gadget.h b/include/linux/usb/gadget.h
> index 942ef5e..9405d0f 100644
> --- a/include/linux/usb/gadget.h
> +++ b/include/linux/usb/gadget.h
> @@ -540,6 +540,9 @@ struct usb_gadget {
> struct device dev;
> unsigned out_epnum;
> unsigned in_epnum;
> +
> + /* epout requires buffer size to be aligned to MaxPacketSize */
please document this on the kernel-doc comment above.
--
balbi
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