[PATCH v4] usb: ehci-hcd: notify phy when connect change

Alan Stern stern at rowland.harvard.edu
Wed Jun 6 10:19:59 EDT 2012


On Wed, 6 Jun 2012, Richard Zhao wrote:

> It still has below limitations:
> - it does not work for multi-phy ehci
> - the best place is after debounce, but I can't get
>   phy there

> +			/* FIXME:
> +			 * - it does not work for multi-phy ehci
> +			 * - the best place is after debounce, but I can't get
> +			 *   phy there
> +			 */
> +			if (unlikely(ehci->transceiver &&
> +					(pstatus & PORT_CSC))) {

A new thought...  If you move the transceiver pointer from struct 
ehci_hcd to struct usb_hcd, then you _will_ be able to get at it from 
within the debouncing routine.

Or if you prefer, leave the pointer where it is and add a method to 
struct hc_driver for retrieving the pointer.

Alan Stern




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