[PATCH] usb: gadget: composite: fill bcdUSB as 0x0320 for SuperSpeed or higher speeds
Chunfeng Yun
chunfeng.yun at mediatek.com
Wed May 9 04:29:16 PDT 2018
The USB3CV version 2.1.80 (March 26, 2018) requires all devices
( gen1, gen2, single lane, dual lane) to return the value of 0x0320
in the bcdUSB field
Signed-off-by: Chunfeng Yun <chunfeng.yun at mediatek.com>
---
drivers/usb/gadget/composite.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/usb/gadget/composite.c b/drivers/usb/gadget/composite.c
index 63a7cb8..f242c2b 100644
--- a/drivers/usb/gadget/composite.c
+++ b/drivers/usb/gadget/composite.c
@@ -1601,7 +1601,7 @@ static int fill_ext_prop(struct usb_configuration *c, int interface, u8 *buf)
cdev->gadget->ep0->maxpacket;
if (gadget_is_superspeed(gadget)) {
if (gadget->speed >= USB_SPEED_SUPER) {
- cdev->desc.bcdUSB = cpu_to_le16(0x0310);
+ cdev->desc.bcdUSB = cpu_to_le16(0x0320);
cdev->desc.bMaxPacketSize0 = 9;
} else {
cdev->desc.bcdUSB = cpu_to_le16(0x0210);
--
1.9.1
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