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/* ----------------------------------------------------------------------------
* "THE BEER-WARE LICENSE" (Revision 42) (by Poul-Henning Kamp):
* <joerg@FreeBSD.ORG> wrote this file. As long as you retain this notice you
* can do whatever you want with this stuff. If we meet some day, and you think
* this stuff is worth it, you can buy me a beer in return. Joerg Wunsch
* ----------------------------------------------------------------------------
*
* $FreeBSD$
*/
/*
* Helper functions common to all examples
*/
#include <stdio.h>
#include <stdint.h>
#include <stdlib.h>
#include <libusb20.h>
#include <libusb20_desc.h>
#include "aux.h"
/*
* Return a textual description for error "r".
*/
const char *
usb_error(enum libusb20_error r)
{
const char *msg = "UNKNOWN";
switch (r)
{
case LIBUSB20_SUCCESS:
msg = "success";
break;
case LIBUSB20_ERROR_IO:
msg = "IO error";
break;
case LIBUSB20_ERROR_INVALID_PARAM:
msg = "Invalid parameter";
break;
case LIBUSB20_ERROR_ACCESS:
msg = "Access denied";
break;
case LIBUSB20_ERROR_NO_DEVICE:
msg = "No such device";
break;
case LIBUSB20_ERROR_NOT_FOUND:
msg = "Entity not found";
break;
case LIBUSB20_ERROR_BUSY:
msg = "Resource busy";
break;
case LIBUSB20_ERROR_TIMEOUT:
msg = "Operation timed out";
break;
case LIBUSB20_ERROR_OVERFLOW:
msg = "Overflow";
break;
case LIBUSB20_ERROR_PIPE:
msg = "Pipe error";
break;
case LIBUSB20_ERROR_INTERRUPTED:
msg = "System call interrupted";
break;
case LIBUSB20_ERROR_NO_MEM:
msg = "Insufficient memory";
break;
case LIBUSB20_ERROR_NOT_SUPPORTED:
msg = "Operation not supported";
break;
case LIBUSB20_ERROR_OTHER:
msg = "Other error";
break;
}
return msg;
}
/*
* Print "len" bytes from "buf" in hex, followed by an ASCII
* representation (somewhat resembling the output of hd(1)).
*/
void
print_formatted(uint8_t *buf, uint32_t len)
{
int i, j;
for (j = 0; j < len; j += 16)
{
printf("%02x: ", j);
for (i = 0; i < 16 && i + j < len; i++)
printf("%02x ", buf[i + j]);
printf(" ");
for (i = 0; i < 16 && i + j < len; i++)
{
uint8_t c = buf[i + j];
if(c >= ' ' && c <= '~')
printf("%c", (char)c);
else
putchar('.');
}
putchar('\n');
}
}
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