On Thu, Jan 24, 2013 at 10:40:36PM +0200, Felipe Balbi wrote:
> this function will receive enum usb_device_state
> and return a human-readable string from it or,
> case an unknown value is passed as argument,
> the string "UNKNOWN".
>
> Signed-off-by: Felipe Balbi <ba...@ti.com>
> ---
> drivers/usb/usb-common.c | 21 +++++++++++++++++++++
> include/linux/usb/ch9.h | 9 +++++++++
> 2 files changed, 30 insertions(+)
>
> diff --git a/drivers/usb/usb-common.c b/drivers/usb/usb-common.c
> index d29503e..070b681 100644
> --- a/drivers/usb/usb-common.c
> +++ b/drivers/usb/usb-common.c
> @@ -32,4 +32,25 @@ const char *usb_speed_string(enum usb_device_speed speed)
> }
> EXPORT_SYMBOL_GPL(usb_speed_string);
>
> +const char *usb_state_string(enum usb_device_state state)
> +{
> + static const char *const names[] = {
> + [USB_STATE_NOTATTACHED] = "not attached",
> + [USB_STATE_ATTACHED] = "attached",
> + [USB_STATE_POWERED] = "powered",
> + [USB_STATE_RECONNECTING] = "reconnecting",
> + [USB_STATE_UNAUTHENTICATED] = "unauthenticated",
> + [USB_STATE_DEFAULT] = "default",
> + [USB_STATE_ADDRESS] = "addresssed",
> + [USB_STATE_CONFIGURED] = "configured",
> + [USB_STATE_SUSPENDED] = "suspended",
> + };
Hi Felipe, I just ask again what's the meaning of "reconnecting"?
I also try to understand at your coming dwc patch (3/3), but
can't find the reference.
> +
> + if (state < 0 || state >= ARRAY_SIZE(names))
> + return "UNKNOWN";
> +
> + return names[state];
> +}
> +EXPORT_SYMBOL_GPL(usb_state_string);
> +
> MODULE_LICENSE("GPL");
> diff --git a/include/linux/usb/ch9.h b/include/linux/usb/ch9.h
> index 9c210f2..27603bc 100644
> --- a/include/linux/usb/ch9.h
> +++ b/include/linux/usb/ch9.h
> @@ -43,4 +43,13 @@
> */
> extern const char *usb_speed_string(enum usb_device_speed speed);
>
> +
> +/**
> + * usb_state_string - Returns human readable name for the state.
> + * @state: The state to return a human-readable name for. If it's not
> + * any of the states devices in usb_device_state_string enum,
> + * the string UNKNOWN will be returned.
> + */
> +extern const char *usb_state_string(enum usb_device_state state);
> +
> #endif /* __LINUX_USB_CH9_H */
> --
> 1.8.1.rc1.5.g7e0651a
>
>
--
Best Regards,
Peter Chen
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