With a patch from Bug in cyfxusbdebug, doesnt work on USB 3
The new garbage is:
root@raspberrypi ~ gcc int.c -o int -lusb-1.0 ; ./int
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8 #xV4"#
8 #xV42#
8 #xV4B#
8 #xV4R#
8 #xV4b#
8 #xV4r#
8 #xV4�#
8 #xV4�#
8 #xV4�#
8 #xV4�#
8 #xV4�#
8 #xV4�#
8 #xV4�#
8 #xV4�#
8 #xV4#
8 #!xV4#
8 #!xV4"#
8 #!xV42#
8 #!xV4B#
8 #!xV4R#
8 #!xV4b#
8 #!xV4r#
8 #!xV4�#
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# Userspace code used for test:
#include <stdio.h>
#include <libusb-1.0/libusb.h>
#include <stdint.h>
#include <string.h>
int main(int argc, char*argv[])
{
int res = 0;
libusb_device_handle* handle = 0;
int kernelDriverDetached = 0;
int numBytes = 0;
int a,b;
unsigned char str[128];
res = libusb_init(0);
if (res != 0) {
fprintf(stderr, "Error initialising libusb.\n");
return 1;
}
handle = libusb_open_device_with_vid_pid(0, 0x04b4, 0x00f0);
if (!handle) {
fprintf(stderr, "Unable to open device.\n");
return 1;
}
if (libusb_kernel_driver_active(handle, 0)) {
res = libusb_detach_kernel_driver(handle, 0);
if (res == 0) {
kernelDriverDetached = 1;
} else {
fprintf(stderr, "Error detaching kernel driver.\n");
return 1;
}
}
res = libusb_claim_interface(handle, 0);
if (res != 0) {
fprintf(stderr, "Error claiming interface.\n");
return 1;
}
for (a=0;a<100;a++) {
memset(str, 0, 128);
res = libusb_interrupt_transfer(handle, 0x81, str, 128, &numBytes, 1000);
if (0 == res)
printf("%d #%s#\n", numBytes, str);
else
fprintf(stderr, "Error receiving message %d.\n", a);
}
res = libusb_release_interface(handle, 0);
if (0 != res)
fprintf(stderr, "Error releasing interface.\n");
if (kernelDriverDetached)
libusb_attach_kernel_driver(handle, 0);
libusb_exit(0);
return 0;
}
