Alan Stern wrote:

On Mon, 26 Nov 2012, Oliver Neukum wrote:

...

On Monday 26 November 2012 14:43:13 Clemens Ladisch wrote:

...

usb_autopm_get_interface() cannot be called from the USB probe callback.

You can use usb_autopm_get_interface_no_resume() During probe() the device is known to not be suspended.

In fact, as far as I know you _can_ use usb_autopm_get_interface() from within a probe routine. Is there some problem with it I'm not aware of?

It returns -EACCES.

But _no_resume() appears to work just fine.

Regards, Clemens