[Ftdi-usb-sio-devel] usb_detatch_kernel_driver

[T. H. <ts...@mr...>]

Hi,
I've just started with libftdi, and am getting an error during
ftdi_open_usb_dev when it tries to detatch any existing ftdi_sio module,
when running as a non-root user.

Everything works OK when I run as root.

Presuming that a user-mode prog wasnt able to do the usb_detach_kernel_driver_np,
I did 'rmmod ftdi_sio', and commented out the 'usb_detach_kernel_driver_np' line in
the library, but I now get a -3 error at the 'usb_set_configuration' step, unless
I run as root.

What permissions do I need to set on what files to be able to do things
as a non-root user?

Many thanks,
Terry