Peripheral answers OTG status selector request from host according to
host request flag of gadget, this flag may be set by application via
kernel interface.
Signed-off-by: Li Jun <b47624@xxxxxxxxxxxxx>
---
drivers/usb/chipidea/udc.c | 12 ++++++++++--
1 file changed, 10 insertions(+), 2 deletions(-)
diff --git a/drivers/usb/chipidea/udc.c b/drivers/usb/chipidea/udc.c
index d683968..b4ee07f 100644
--- a/drivers/usb/chipidea/udc.c
+++ b/drivers/usb/chipidea/udc.c
@@ -823,8 +823,16 @@ __acquires(hwep->lock)
}
if ((setup->bRequestType & USB_RECIP_MASK) == USB_RECIP_DEVICE) {
- /* Assume that device is bus powered for now. */
- *(u16 *)req->buf = ci->remote_wakeup << 1;
+ if ((setup->wIndex == OTG_STS_SELECTOR) &&
+ (gadget_is_otg(&ci->gadget))) {
+ if (ci->gadget.host_request_flag)
+ *(u16 *)req->buf = HOST_REQUEST_FLAG;
+ else
+ *(u16 *)req->buf = 0;
+ } else {
+ /* Assume that device is bus powered for now. */
+ *(u16 *)req->buf = ci->remote_wakeup << 1;
+ }
retval = 0;
} else if ((setup->bRequestType & USB_RECIP_MASK) \
== USB_RECIP_ENDPOINT) {
--
1.7.9.5
--
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