7 void put32le(uint8_t *buf
, uint32_t i
)
10 *buf
++ = (i
>> 8) & 0xff;
11 *buf
++ = (i
>> 16) & 0xff;
12 *buf
++ = (i
>> 24) & 0xff;
15 void put32be(uint8_t *buf
, uint32_t i
)
17 *buf
++ = (i
>> 24) & 0xff;
18 *buf
++ = (i
>> 16) & 0xff;
19 *buf
++ = (i
>> 8) & 0xff;
23 int main(int argc
, char **argv
)
29 int i
, xfer_size
, nr_xfers
, recv_size
;
33 printf("usage: %s <xfer size> <file>\n", argv
[0]);
38 xfer_size
= strtol(argv
[1], &end
, 0);
39 if(end
!= (argv
[1] + strlen(argv
[1])))
41 printf("Invalid transfer size !\n");
45 libusb_device_handle
*dev
;
49 libusb_set_debug(NULL
, 3);
51 dev
= libusb_open_device_with_vid_pid(NULL
, 0x066F, 0x3780);
54 printf("Cannot open device\n");
58 libusb_detach_kernel_driver(dev
, 0);
59 libusb_detach_kernel_driver(dev
, 4);
61 libusb_claim_interface (dev
, 0);
62 libusb_claim_interface (dev
, 4);
70 f
= fopen(argv
[2], "r");
73 perror("cannot open file");
76 fseek(f
, 0, SEEK_END
);
77 size_t size
= ftell(f
);
78 fseek(f
, 0, SEEK_SET
);
80 printf("Transfer size: %d\n", xfer_size
);
81 nr_xfers
= (size
+ xfer_size
- 1) / xfer_size
;
82 uint8_t *file_buf
= malloc(nr_xfers
* xfer_size
);
83 memset(file_buf
, 0xff, nr_xfers
* xfer_size
); // pad with 0xff
84 if(fread(file_buf
, size
, 1, f
) != 1)
96 *p
++ = 0x01; // Init upload command
97 *p
++ = 'B'; // Signature
101 put32le(p
, 0x1); // I guess version or sub-command
103 put32le(p
, size
); // Payload size
105 // The second command starts at 0x20
109 *p
++ = 0x02; // Start upload
110 put32be(p
, size
); // Payload size, again
112 ret
= libusb_control_transfer(dev
,
113 LIBUSB_REQUEST_TYPE_CLASS
| LIBUSB_RECIPIENT_INTERFACE
, 0x9, 0x201, 0,
117 printf("transfer error at init step\n");
121 uint8_t *xfer_buf
= malloc(1 + xfer_size
);
123 for(i
= 0; i
< nr_xfers
; i
++)
126 memcpy(&xfer_buf
[1], &file_buf
[i
* xfer_size
], xfer_size
);
128 ret
= libusb_control_transfer(dev
,
129 LIBUSB_REQUEST_TYPE_CLASS
| LIBUSB_RECIPIENT_INTERFACE
,
130 0x9, 0x202, 0, xfer_buf
, xfer_size
+ 1, 1000);
133 printf("transfer error at send step %d\n", i
);
138 ret
= libusb_interrupt_transfer(dev
, 0x81, xfer_buf
, xfer_size
, &recv_size
,
142 printf("transfer error at final stage\n");
146 printf("ret %i\n", ret
);