Hi On Mon, 10 Oct 2011, Paul Walmsley wrote: > So then you'd just create a TLL driver with something like these two > symbols exported: > > omap_usbhost_tll_enable_port(); > omap_usbhost_tll_disable_port(); N.B., since I don't think Linux has any formal support to map USB ports to TLL ports, you'll probably need to create a couple of functions in your drivers/mfd/omap-usb-host.c that your EHCI/OHCI drivers could call during init/exit to get and put the TLL struct device, to pass to those above functions. Since the MFD driver is what creates the TLL struct devices, the MFD driver will have the TLL struct device pointers. Something like omap_usbhost_get_tll_device() and omap_usbhost_put_tll_device(). One other thing. Not sure what the correct generic name prefix for these functions should be, since I don't know the provenance of the USBHOST IP block; but maybe the function prefix should be something like 'ti_usbhost' instead, to indicate that it isn't OMAP-specific? You would know better than I. - Paul -- To unsubscribe from this list: send the line "unsubscribe linux-omap" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html