diff options
Diffstat (limited to 'drivers/usb/host/ehci.h')
| -rw-r--r-- | drivers/usb/host/ehci.h | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/drivers/usb/host/ehci.h b/drivers/usb/host/ehci.h index 475f23e10bbf..9e8e82ecce58 100644 --- a/drivers/usb/host/ehci.h +++ b/drivers/usb/host/ehci.h @@ -62,10 +62,15 @@ struct ehci_stats { #define EHCI_MAX_ROOT_PORTS 15 /* see HCS_N_PORTS */ +/* + * ehci_rh_state values of EHCI_RH_RUNNING or above mean that the + * controller may be doing DMA. Lower values mean there's no DMA. + */ enum ehci_rh_state { EHCI_RH_HALTED, EHCI_RH_SUSPENDED, - EHCI_RH_RUNNING + EHCI_RH_RUNNING, + EHCI_RH_STOPPING }; struct ehci_hcd { /* one per controller */ |