[Libusb-devel] Still can't claim interface, "No such file or directory"

[Kustaa N. <Kus...@pl...>]

Hi,

pleaded about my problems previously and get some suggestions but 
nothing helps.

When I run my code to access my weather station that advertises itself
as HID device I run into the following issue:

I do the normal libusb (0.1) stuff of usb_init()/usb_find_buses()/usb_find_devices()
and all this works every time, I can find my device no problem.

I can also set the configuration with usb_set_configuration() but
when I try to  usb_claim_interface() I get "device busy"
and indeed dmesg I see that the interface has been claimed
by usbhid.

So I unbind it with usb_detach_kernel_driver_np()  after
which an attempt to  claim interface returns "no such file or directory".

But I can still enumerate the buses and devices and find my
device! What is going on?

So obviously usbhid is claiming my device in the first place
and I can force it to detatch itself but then libusb cannot
claim it? How can the libusb find the device in the
enumration phase but not find it when I try to claim the 
interface?

This is on Ubuntu 9.04 and libusb 0.1

br Kusti