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Diffstat (limited to 'drivers/usb/host/xhci.h')
-rw-r--r--drivers/usb/host/xhci.h4
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/usb/host/xhci.h b/drivers/usb/host/xhci.h
index bb8e6656cca4..877813505ef2 100644
--- a/drivers/usb/host/xhci.h
+++ b/drivers/usb/host/xhci.h
@@ -677,6 +677,10 @@ struct xhci_virt_device {
struct xhci_container_ctx *out_ctx;
/* Used for addressing devices and configuration changes */
struct xhci_container_ctx *in_ctx;
+ /* Rings saved to ensure old alt settings can be re-instated */
+ struct xhci_ring **ring_cache;
+ int num_rings_cached;
+#define XHCI_MAX_RINGS_CACHED 31
struct xhci_virt_ep eps[31];
struct completion cmd_completion;
/* Status of the last command issued for this device */