ep_queue_head Struct Reference

Data Fields

u32 max_pkt_length
u32 curr_dtd_ptr
u32 next_dtd_ptr
u32 size_ioc_int_sts
u32 buff_ptr0
u32 buff_ptr1
u32 buff_ptr2
u32 buff_ptr3
u32 buff_ptr4
u32 res1
u8 setup_buffer [8]
u32 res2 [4]

Detailed Description

Endpoint Queue Head data struct Rem: all the variables of qh are LittleEndian Mode and NEXT_POINTER_MASK should operate on a LittleEndian, Phy Addr


Field Documentation

Buffer pointer Page 0 (31-12)

Buffer pointer Page 1 (31-12)

Buffer pointer Page 2 (31-12)

Buffer pointer Page 3 (31-12)

Buffer pointer Page 4 (31-12)

Current dTD Pointer(31-5)

Mult(31-30) , Zlt(29) , Max Pkt len and IOS(15)

Next dTD Pointer(31-5), T(0)

reserved field 1

reserved field 2,pad out to 64 bytes

Setup data 8 bytes

Total bytes (30-16), IOC (15), MultO(11-10), STS (7-0)

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