diff options
| author | Mathias Nyman <mathias.nyman@linux.intel.com> | 2015-02-24 18:27:02 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2015-02-24 08:34:32 -0800 |
| commit | 27082e2654dc148078b0abdfc3c8e5ccbde0ebfa (patch) | |
| tree | d458d88a8453e889b21e4036a4c3d4add33529e8 /drivers/usb/host/xhci.h | |
| parent | 6596a926b0b6c80b730a1dd2fa91908e0a539c37 (diff) | |
| download | linux-27082e2654dc148078b0abdfc3c8e5ccbde0ebfa.tar.bz2 | |
xhci: Clear the host side toggle manually when endpoint is 'soft reset'
Main benefit of this is to get xhci connected USB scanners to work.
Some devices use a clear endpoint halt request as a 'soft reset' even if
the endpoint is not halted. This will clear the toggle and sequence on the
device side. xHCI however refuses to reset a non-halted endpoint, so instead
we need to issue a configure endpoint command on xHCI to clear its host side
toggle and sequence, and get it in sync with the device side.
Tested-by: Mike Mammarella <mikem@crystalorb.net>
Cc: <stable@vger.kernel.org> # v3.18
Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/usb/host/xhci.h')
| -rw-r--r-- | drivers/usb/host/xhci.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/usb/host/xhci.h b/drivers/usb/host/xhci.h index 68956b13b8d1..3b97f0582155 100644 --- a/drivers/usb/host/xhci.h +++ b/drivers/usb/host/xhci.h @@ -864,6 +864,8 @@ struct xhci_virt_ep { #define EP_HAS_STREAMS (1 << 4) /* Transitioning the endpoint to not using streams, don't enqueue URBs */ #define EP_GETTING_NO_STREAMS (1 << 5) +#define EP_RECENTLY_HALTED (1 << 6) +#define EP_CONFIG_PENDING (1 << 7) /* ---- Related to URB cancellation ---- */ struct list_head cancelled_td_list; struct xhci_td *stopped_td; |