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Fixed the weird libusb issue...

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This commit is contained in:
Gregor Haas
2019-10-26 16:46:07 -04:00
parent 48202b23aa
commit 2edfdb1589
5 changed files with 32 additions and 37 deletions
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14
libusb_helpers.c
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@@ -1,11 +1,6 @@
//
// Created by grg on 10/23/19.
//
#include "libusb_helpers.h"
#include <string.h>
#include <time.h>
#include <stdio.h>
#include <stdlib.h>
@@ -44,15 +39,14 @@ void libusb1_async_ctrl_transfer(libusb_device_handle *handle,
unsigned int timeout)
{
struct timeval start, end;
unsigned char usb_transfer_buf[8 + 2 + data_len];
unsigned char usb_transfer_buf[8 + data_len];
int ret;
gettimeofday(&start, NULL);
struct libusb_transfer *usb_transfer = libusb_alloc_transfer(0);
libusb_fill_control_setup(usb_transfer_buf, bmRequestType, bRequest, wValue, wIndex, 0xC0);
memset(&usb_transfer_buf[8], data_len, 2);
memcpy(&usb_transfer_buf[10], data, data_len);
memcpy(&usb_transfer_buf[8], data, data_len);
libusb_fill_control_transfer(usb_transfer, handle, usb_transfer_buf, NULL, NULL, 1);
ret = libusb_submit_transfer(usb_transfer);
@@ -69,13 +63,11 @@ void libusb1_async_ctrl_transfer(libusb_device_handle *handle,
if(end.tv_usec - start.tv_usec > timeout)
{
ret = libusb_cancel_transfer(usb_transfer);
libusb_free_transfer(usb_transfer);
if(ret != 0)
{
printf("Failed to cancel async USB transfer: %s\n", libusb_error_name(ret));
exit(ret);
}
return;
}
}
@@ -113,7 +105,7 @@ void stall(libusb_device_handle *handle)
printf("Stall\n");
unsigned char *data = malloc(0xC0);
memset(data, 0xA, 0xC0);
libusb1_async_ctrl_transfer(handle, 0x80, 6, 0x304, 0x40A, data, 0xC0, 1000);
libusb1_async_ctrl_transfer(handle, 0x80, 6, 0x304, 0x40A, data, 0xC0, 1);
free(data);
}