diff options
| author | Manu Gautam <mgautam@codeaurora.org> | 2016-05-04 17:16:53 +0530 |
|---|---|---|
| committer | Gerrit - the friendly Code Review server <code-review@localhost> | 2017-03-07 04:05:13 -0800 |
| commit | 3e96eebc6baddacacc75f1694f06b685e0ad2b63 (patch) | |
| tree | e6456ab3d3ff8d40f2d817b76903126f917ad556 | |
| parent | 783427f7ad16090b68801d1142c20df47bced74b (diff) | |
usb: xhci: Set bulk EP maxpacket to 8 for buggy FS devices
Some FS devices report maxpacket size as 4 for their BULK EPs
which is incorrect as per USB specification. This results in
ep_config command to controller timing out and enumeration fails.
As minimum maxpacket size for FS is 8, override the same for such
devices.
CRs-fixed: 1002876
Change-Id: I70c2210b4eb93f557eef306fcbc11308b7b33e07
Signed-off-by: Manu Gautam <mgautam@codeaurora.org>
| -rw-r--r-- | drivers/usb/host/xhci-mem.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/usb/host/xhci-mem.c b/drivers/usb/host/xhci-mem.c index 098df6ced1c3..8e5ab373dce9 100644 --- a/drivers/usb/host/xhci-mem.c +++ b/drivers/usb/host/xhci-mem.c @@ -1476,6 +1476,8 @@ int xhci_endpoint_init(struct xhci_hcd *xhci, } break; case USB_SPEED_FULL: + if (usb_endpoint_xfer_bulk(&ep->desc) && max_packet < 8) + max_packet = 8; case USB_SPEED_LOW: break; default: |