diff options
Diffstat (limited to 'include/usb.h')
| -rw-r--r-- | include/usb.h | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/include/usb.h b/include/usb.h index f71da52..58b4549 100644 --- a/include/usb.h +++ b/include/usb.h @@ -537,6 +537,21 @@ struct usb_hub_status { unsigned short wHubChange; } __attribute__ ((packed)); +/* + * Hub Device descriptor + * USB Hub class device protocols + */ +#define USB_HUB_PR_FS 0 /* Full speed hub */ +#define USB_HUB_PR_HS_NO_TT 0 /* Hi-speed hub without TT */ +#define USB_HUB_PR_HS_SINGLE_TT 1 /* Hi-speed hub with single TT */ +#define USB_HUB_PR_HS_MULTI_TT 2 /* Hi-speed hub with multiple TT */ +#define USB_HUB_PR_SS 3 /* Super speed hub */ + +/* 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 /* Hub descriptor */ struct usb_hub_descriptor { @@ -571,6 +586,7 @@ struct usb_hub_device { ulong query_delay; /* Device query delay in ms */ int overcurrent_count[USB_MAXCHILDREN]; /* Over-current counter */ int hub_depth; /* USB 3.0 hub depth */ + struct usb_tt tt; /* Transaction Translator */ }; #ifdef CONFIG_DM_USB |