^^^^^^On Mon, 16 May 2005, coin wrote:
I changed the address for the variable containing 0 and I changed of the number of bytes 1024 to 1 byte or 4 bytes like you said me. But the result is the same
int main(){ struct usbdevfs_bulktransfer bulk; int fd; int ret,*data,dato=0xFF,interface=0x00,*inter; data=&dato; inter=&interface; fd = open("/proc/bus/usb/002/003", O_RDWR); if(fd != -1) { bulk.ep = 1; bulk.len = 1; bulk.data = data; bulk.timeout = 1000; ioctl(fd, USBDEVFS_CLAIMINTERFACE, *inter);
I think you missed the obvious bug. You don't pass the value, you pass the pointer.
So something like:
>> ioctl(fd, USBDEVFS_CLAIMINTERFACE, &interface);
should do the trick. I hope this helps,
-- Paulo Marques - www.grupopie.com
An expert is a person who has made all the mistakes that can be made in a very narrow field. Niels Bohr (1885 - 1962)
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