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path: root/drivers/usb/host/ehci.h
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Diffstat (limited to 'drivers/usb/host/ehci.h')
-rw-r--r--drivers/usb/host/ehci.h7
1 files changed, 7 insertions, 0 deletions
diff --git a/drivers/usb/host/ehci.h b/drivers/usb/host/ehci.h
index cc7d337..c161d97 100644
--- a/drivers/usb/host/ehci.h
+++ b/drivers/usb/host/ehci.h
@@ -62,6 +62,12 @@ struct ehci_stats {
#define EHCI_MAX_ROOT_PORTS 15 /* see HCS_N_PORTS */
+enum ehci_rh_state {
+ EHCI_RH_HALTED,
+ EHCI_RH_SUSPENDED,
+ EHCI_RH_RUNNING
+};
+
struct ehci_hcd { /* one per controller */
/* glue to PCI and HCD framework */
struct ehci_caps __iomem *caps;
@@ -70,6 +76,7 @@ struct ehci_hcd { /* one per controller */
__u32 hcs_params; /* cached register copy */
spinlock_t lock;
+ enum ehci_rh_state rh_state;
/* async schedule support */
struct ehci_qh *async;
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