diff options
Diffstat (limited to 'drivers/usb/core/hub.h')
| -rw-r--r-- | drivers/usb/core/hub.h | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/drivers/usb/core/hub.h b/drivers/usb/core/hub.h index 53bf5649621..e7fa9b5a521 100644 --- a/drivers/usb/core/hub.h +++ b/drivers/usb/core/hub.h @@ -157,6 +157,12 @@ enum hub_led_mode { struct usb_device; +/* Transaction Translator Think Times, in bits */ +#define HUB_TTTT_8_BITS 0x00 +#define HUB_TTTT_16_BITS 0x20 +#define HUB_TTTT_24_BITS 0x40 +#define HUB_TTTT_32_BITS 0x60 + /* * As of USB 2.0, full/low speed devices are segregated into trees. * One type grows from USB 1.1 host controllers (OHCI, UHCI etc). @@ -170,6 +176,7 @@ struct usb_device; struct usb_tt { struct usb_device *hub; /* upstream highspeed hub */ int multi; /* true means one TT per port */ + unsigned think_time; /* think time in ns */ /* for control/bulk error recovery (CLEAR_TT_BUFFER) */ spinlock_t lock; |