On Wed, 17 Jun 2015, Stefan Koch wrote:
> Interfaces are allowed per default.
> This can disabled or enabled (again) by writing 0 or 1 to
> /sys/bus/usb/devices/usb*/interface_authorized_default
>
> Signed-off-by: Stefan Koch <skoch@xxxxxxx>
> --- a/include/linux/usb/hcd.h
> +++ b/include/linux/usb/hcd.h
> @@ -142,6 +142,7 @@ struct usb_hcd {
> unsigned uses_new_polling:1;
> unsigned wireless:1; /* Wireless USB HCD */
> unsigned authorized_default:1;
> + unsigned interface_authorized_default:1;
This is the wrong place to put your new flag. This section is for
flags that get set only during HCD registration or removal (see the
comment on line 134).
> unsigned has_tt:1; /* Integrated TT in root hub */
> unsigned amd_resume_bug:1; /* AMD remote wakeup quirk */
> unsigned can_do_streams:1; /* HC supports streams */
Alan Stern
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