If gadget with HNP polling support receives GetStatus request of otg status
selector, it feedback to host with host request flag to indicate if it wants
to take host role.
Acked-by: Peter Chen <peter.chen@xxxxxxxxxxxxx>
Signed-off-by: Li Jun <jun.li@xxxxxxxxxxxxx>
---
drivers/usb/gadget/composite.c | 25 +++++++++++++++++--------
1 file changed, 17 insertions(+), 8 deletions(-)
diff --git a/drivers/usb/gadget/composite.c b/drivers/usb/gadget/composite.c
index 13adfd1..1f73bd9 100644
--- a/drivers/usb/gadget/composite.c
+++ b/drivers/usb/gadget/composite.c
@@ -1594,15 +1594,24 @@ composite_setup(struct usb_gadget *gadget, const struct usb_ctrlrequest *ctrl)
*((u8 *)req->buf) = value;
value = min(w_length, (u16) 1);
break;
-
- /*
- * USB 3.0 additions:
- * Function driver should handle get_status request. If such cb
- * wasn't supplied we respond with default value = 0
- * Note: function driver should supply such cb only for the first
- * interface of the function
- */
case USB_REQ_GET_STATUS:
+ if (gadget_is_otg(gadget) && gadget->hnp_polling_support &&
+ (w_index == OTG_STS_SELECTOR)) {
+ if (ctrl->bRequestType != (USB_DIR_IN |
+ USB_RECIP_DEVICE))
+ goto unknown;
+ *((u8 *)req->buf) = gadget->host_request_flag;
+ value = 1;
+ break;
+ }
+
+ /*
+ * USB 3.0 additions:
+ * Function driver should handle get_status request. If such cb
+ * wasn't supplied we respond with default value = 0
+ * Note: function driver should supply such cb only for the
+ * first interface of the function
+ */
if (!gadget_is_superspeed(gadget))
goto unknown;
if (ctrl->bRequestType != (USB_DIR_IN | USB_RECIP_INTERFACE))
--
1.7.9.5
--
To unsubscribe from this list: send the line "unsubscribe linux-usb" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
