From f17da1c66e53a05e7d400efc98cbfe4faa820ae4 Mon Sep 17 00:00:00 2001
From: hathach <thach@tinyusb.org>
Date: Sat, 7 Mar 2026 15:25:05 +0700
Subject: open hub mtt interface in 1 call

---
 src/host/hub.h | 7 +++++++
 1 file changed, 7 insertions(+)

(limited to 'src/host/hub.h')

diff --git a/src/host/hub.h b/src/host/hub.h
index d9750f8a5..8a7feda70 100644
--- a/src/host/hub.h
+++ b/src/host/hub.h
@@ -92,6 +92,13 @@ enum {
   HUB_CHARS_OVER_CURRENT_INDIVIDUAL = 1,
 };
 
+// Hub Interface Protocol (USB 2.0 spec Table 11-16)
+typedef enum {
+  HUB_PROTOCOL_FULL_SPEED     = 0, // Full speed hub
+  HUB_PROTOCOL_HIGH_SPEED_STT = 1, // Hi-speed hub with single TT
+  HUB_PROTOCOL_HIGH_SPEED_MTT = 2, // Hi-speed hub with multiple TTs
+} hub_protocol_t;
+
 typedef struct TU_ATTR_PACKED{
   uint8_t  bLength           ; ///< Size of descriptor
   uint8_t  bDescriptorType   ; ///< Other_speed_Configuration Type
-- 
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