On Sun, Jun 7, 2009 at 4:55 PM, loody<miloody@xxxxxxxxx> wrote: >> It must be possible. But why do you want to do that? I think it is >> easier to use the file I/O. > Do you mean fopen the dev node and r/w it? > like fd = fopen(filename, "w")? Yes, something like that. > BTW, I change the venderid/deviceid in /libusb/examples/dpfp.c to get > familiar with the lib apis. > But it return message as: > usb_claim_interface error -6 > > From source code, -6 means it is busy. > I try it again by umounting the usb flash disk, but the error is still the same. > > Is there anything I have to do before testing libusb api? You can use libusb_detach_kernel_driver to detach the kernel driver before claiming the interface. http://libusb.sourceforge.net/api-1.0/group__dev.html BTW, please use libusb mailing list and not this list for further discussions. Thanks. I will not reply further to this thread as I think it is OT for this list. -- Xiaofan http://mcuee.blogspot.com -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
