> Another idea. Is it harmful to "re-power" already powered ports? For
> example like this:
>
> Signed-off-by: Colin Leroy <[EMAIL PROTECTED]>
> --- a/drivers/usb/host/ehci-hcd.c 2005-03-15 17:28:52.000000000 +0100
> +++ b/drivers/usb/host/ehci-hcd.c 2005-03-16 14:44:06.000000000 +0100
> @@ -773,14 +775,12 @@
> /* here we "know" root ports should always stay powered;
> * but some controllers may lost all power.
> */
> - if (powerup) {
> - ehci_dbg (ehci, "...powerup ports...\n");
> - for (port = HCS_N_PORTS (ehci->hcs_params); port > 0; )
> - (void) ehci_hub_control(hcd,
> - SetPortFeature, USB_PORT_FEAT_POWER,
> - port--, NULL, 0);
> - msleep(20);
> - }
> + ehci_dbg (ehci, "...powerup ports...\n");
> + for (port = HCS_N_PORTS (ehci->hcs_params); port > 0; )
> + (void) ehci_hub_control(hcd,
> + SetPortFeature, USB_PORT_FEAT_POWER,
> + port--, NULL, 0);
> + msleep(20);
> }
>
> return retval;
Doesn't work for me ... the device attached to the port is still powered
down after wakeup.
Michael
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