STRUCT MU3H_SCH_EP_INFO(9)

🦋 NAME 🦋

okay bestie, this is struct mu3h_sch_ep_info — schedule information for endpoint. It's from the Kernel API Manual, and it's literally the blueprint for one endpoint's schedule info. slay. 💅

✨ SYNOPSIS ✨

struct mu3h_sch_ep_info {
    u32 esit;
    u32 num_esit;
    u32 num_budget_microframes;
    struct list_head endpoint;
    struct hlist_node hentry;
    struct list_head tt_endpoint;
    struct mu3h_sch_bw_info *bw_info;
    struct mu3h_sch_tt *sch_tt;
    u32 ep_type;
    u32 maxpkt;
    struct usb_host_endpoint *ep;
    enum usb_device_speed speed;
    bool allocated;
    u32 offset;
    u32 repeat;
    u32 pkts;
    u32 cs_count;
    u32 burst_mode;
    u32 bw_budget_table[];
};

💅 Members 💅

• esit — unit is 125us, equal to 2 << Interval field in ep-context. ⭐
• num_esit — number of esit in a period. 🎀
• num_budget_microframes — number of continuous uframes (repeat==1) scheduled within the interval. 🦋
• endpoint — linked into the bandwidth domain it belongs to. 💖
• hentry — hash table entry. 🔥
• tt_endpoint — linked into mu3h_sch_tt's list that it belongs to. 🌸
• bw_info — the bandwidth domain this endpoint belongs to. 👑
• sch_tt — the mu3h_sch_tt it's linked into. 🫶
• ep_type — endpoint type. ✨
• maxpkt — max packet size of the endpoint. 📦
• ep — address of the usb_host_endpoint struct. 🧚
• speed — usb device speed. 🌈
• allocated — the bandwidth is aready allocated from bus_bw. 💀
• offset — which uframe of the interval the transfer should be scheduled first time within the interval. ⏱️
• repeat — the time gap between two uframes that transfers are scheduled within an interval. In the simple algorithm, only assign 0 or 1 to it; 0 means using only one uframe in an interval, and 1 means using num_budget_microframes continuous uframes. 🔁
• pkts — number of packets to be transferred in the scheduled uframes. 🍓
• cs_count — number of CS that the host will trigger. ⚡
• burst_mode — burst mode for scheduling. 0: normal burst mode, distribute the bMaxBurst+1 packets for a single burst according to pkts and repeat, repeate the burst multiple times; 1: distribute the (bMaxBurst+1)*(Mult+1) packets according to pkts and repeat. normal mode is used by default. 💥
• bw_budget_table — table to record bandwidth budget per microframe. 🎀

🌈 SEE ALSO 🌈

Kernel file ./drivers/usb/host/xhci-mtk.h struct mu3h_sch_tt(9), struct mu3h_sch_bw_info(9), struct mu3c_ippc_regs(9).

mwah 💋 this page is served from ./drivers/usb/host, dated October 2026. periodt. 🫶