Messages in this thread Patch in this message |  | | From | Neil Zhang <> | Subject | [PATCH 2/6] usb: gadget: mv_udc: disable HW zlt for ep0 | Date | Mon, 24 Feb 2014 16:03:12 +0800 |
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Hardware zlt will try to send the zero length packet automatically when the data transferd is multiple times of max packet, this will cause issues on Windows. So let's disable HW zlt by default.
Signed-off-by: Neil Zhang <zhangwm@marvell.com> --- drivers/usb/gadget/mv_udc_core.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/usb/gadget/mv_udc_core.c b/drivers/usb/gadget/mv_udc_core.c index ebc0dfd..657ac5c 100644 --- a/drivers/usb/gadget/mv_udc_core.c +++ b/drivers/usb/gadget/mv_udc_core.c @@ -89,7 +89,7 @@ static void ep0_reset(struct mv_udc *udc) /* configure ep0 endpoint capabilities in dQH */ ep->dqh->max_packet_length = (EP0_MAX_PKT_SIZE << EP_QUEUE_HEAD_MAX_PKT_LEN_POS) - | EP_QUEUE_HEAD_IOS; + | EP_QUEUE_HEAD_IOS | EP_QUEUE_HEAD_ZLT_SEL; ep->dqh->next_dtd_ptr = EP_QUEUE_HEAD_NEXT_TERMINATE; -- 1.7.9.5
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