Am Donnerstag, 3. Juni 2010 05:46:41 schrieb Du, Alek: > >> >> > > >> >> >No. Please make an explicit hook for this in usbcore. > >> >> > >> >> Thanks, but I do not know if we can make it ehci specific? > >> > > >> >Does anything but a subset of EHCI support LPM? > >> >I am not sure that I understand the question. > >> > >> What I mean is, I do not want to touch usb core code, since it is only a EHCI > >feature. > >> If we could keep the patch only in EHCI part, it is good. > > > >If you put it into the reset_device method of EHCI, all will be well, won't it? > > > > Regards > > Oliver > > The problem is during reset_device, the address of the device is unknown, while > we need fill the address in PORTSC register to enable LPM ... like: > > ehci_lpm_set_da(..., dev_address ... ) > > Maybe we need to define a set_address callback hook in hcd ? or keep current "ugly" way? I see. In this case an additional callback is needed. We have them for USB 3.0 all over the place. This is no problem. Regards Oliver -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
