* only supports HNP on a different root port.
* @b_hnp_enable: OTG device feature flag, indicating that the A-Host
* enabled HNP support.
+ * @quirk_ep_out_aligned_size: epout requires buffer size to be aligned to
+ * MaxPacketSize.
*
* Gadgets have a mostly-portable "gadget driver" implementing device
* functions, handling all usb configurations and interfaces. Gadget
unsigned a_hnp_support:1;
unsigned a_alt_hnp_support:1;
atomic_t connect_count;
+ unsigned quirk_ep_out_aligned_size:1;
};
static inline void set_gadget_data(struct usb_gadget *gadget, void *data)
/**
+ * usb_ep_align_maybe - returns @len aligned to ep's maxpacketsize if gadget
+ * requires quirk_ep_out_aligned_size, otherwise reguens len.
+ * @g: controller to check for quirk
+ * @ep: the endpoint whose maxpacketsize is used to align @len
+ * @len: buffer size's length to align to @ep's maxpacketsize
+ *
+ * This helper is used in case it's required for any reason to check and maybe
+ * align buffer's size to an ep's maxpacketsize.
+ */
+static inline size_t
+usb_ep_align_maybe(struct usb_gadget *g, struct usb_ep *ep, size_t len)
+{
+ return !g->quirk_ep_out_aligned_size ? len :
+ round_up(len, (size_t)ep->desc->wMaxPacketSize);
+}
+
+/**
* gadget_is_dualspeed - return true iff the hardware handles high speed
* @g: controller that might support both high and full speeds
*/