* Felipe Balbi | 2011-12-19 13:04:05 [+0200]:
>--- a/include/linux/usb/gadget.h
>+++ b/include/linux/usb/gadget.h
>@@ -478,6 +478,53 @@ struct usb_gadget_ops {
> int (*stop)(struct usb_gadget_driver *);
> };
>
>+enum usb_device_status {
>+ USB_STATUS_IDLE,
>+ USB_STATUS_CONNECTED,
>+ USB_STATUS_RESETTING,
>+
>+ USB_STATUS_DEFAULT,
>+ USB_STATUS_ADDRESSED,
>+ USB_STATUS_UNCONFIGURED,
>+ USB_STATUS_CONFIGURED,
>+
>+ USB_STATUS_SUSPENDING,
>+ USB_STATUS_SUSPENDED,
>+ USB_STATUS_RESUMING,
>+ USB_STATUS_RESUMED,
>+};
Those look simple enough. Could add little doc when each state should be
set. So one knows the difference betweend USB_STATUS_CONNECTED,
USB_STATUS_DEFAULT and USB_STATUS_CONFIGURED.
The flow is
idle -> connected -> reset -> addressed -> configured
I guess.
Sebastian
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