[Libusb-devel] Segmentation fault - not sure what is happening

[Raghav P. <rag...@gm...>]

Hi,

I am trying to communicate with a FX2 USB device that I have. I am
able to submit control transfers just fine. However, when I try to do
a bulk transfer, I get a segmentation fault. I'm not sure what is
happening. Any help would be appreciated.

The code segment that is segfaulting is below:


#define FLEX_2_EP 0x02

//m_hDeviceHandle is a pointer libusb_device_handle

int *nBytes;
int result;

char c = 'R';
unsigned char endpoint = FLEX_2_EP;
result = libusb_bulk_transfer(m_hDeviceHandle, endpoint, (unsigned
char*) &c, sizeof(c), nBytes, 0); //segfault occurs here



--
Raghav Puranmalka <rag...@gm...>
Bachelor of Science in Bioengineering
School of Engineering and Applied Science
University of Pennsylvania