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include '../proc32.inc'

align 4

proc usb_get_descriptor stdcall, dev:dword, type:dword, index:dword,\

                                 buf:dword, size:dword

           locals

             count        dd ?

           endl

           mov esi, [buf]

           mov ecx, [size]

           xor eax, eax

           cld

           rep stosb

           mov [count], 3

@@:

           mov eax, [type]

           shl eax, 8

           add eax, [index]

           stdcall usb_control_msg, [dev],pipe,USB_REQ_GET_DESCRIPTOR,\

                                    USB_DIR_IN, eax,0,[buf], [size],\

                                    USB_CTRL_GET_TIMEOUT

           test eax, eax

           jz .next

           cmp eax, -1

           je .next

           jmp. ok

.next:

           dec [count]

           jnz @B

           mov eax, -1

.ok:

           ret

endp