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| author | Bin Meng <bmeng.cn@gmail.com> | 2017-07-19 13:49:58 (GMT) |
|---|---|---|
| committer | Prabhakar Kushwaha <prabhakar.kushwaha@nxp.com> | 2017-08-08 08:42:23 (GMT) |
| commit | ef66b33e7de58b9da3ed6b205e599e9ab8a1c153 (patch) | |
| tree | ed2f8c21a20f167816910f8ac1298055fc30753b /drivers/usb | |
| parent | 5d57ff86dbcb8ab144d0bc8fd4a81da52a853fff (diff) | |
| download | u-boot-ef66b33e7de58b9da3ed6b205e599e9ab8a1c153.tar.xz | |
usb: hub: Send correct wValue to get hub descriptor of a USB 3.0 hub
Testing a USB 3.0 hub by connecting it to the xHCI port on Intel
MinnowMax, when issuing 'get hub descriptor' to the hub, xHCI
reports a transfer event TRB with a completion code 6 which means
'Stall Error'.
In fact super speed USB hub descriptor type is 0x2a, not 0x29.
Sending correct SETUP packet to the hub makes it not stall anymore.
Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Stefan Roese <sr@denx.de>
Tested-by: Stefan Roese <sr@denx.de>
Diffstat (limited to 'drivers/usb')
| -rw-r--r-- | drivers/usb/host/xhci.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/usb/host/xhci.c b/drivers/usb/host/xhci.c index c949000..9fa0d8f 100644 --- a/drivers/usb/host/xhci.c +++ b/drivers/usb/host/xhci.c @@ -727,6 +727,7 @@ static int xhci_submit_root(struct usb_device *udev, unsigned long pipe, case USB_REQ_GET_DESCRIPTOR | ((USB_DIR_IN | USB_RT_HUB) << 8): switch (le16_to_cpu(req->value) >> 8) { case USB_DT_HUB: + case USB_DT_SS_HUB: debug("USB_DT_HUB config\n"); srcptr = &descriptor.hub; srclen = 0x8; |