On Tue, 11 Jan 2011, Matthieu CASTET wrote: > Hi, > > Any news/comments on this ? > > With effort to make generic arm kernel > (https://wiki.ubuntu.com/Specs/ARMSingleKernel) this could be really useful. > > Also it could be usefull on x86 to support more than one pci udc driver. > > Matthieu > > Matthieu CASTET a écrit : > > Hello, > > > > I seems there no work on UDC Class anymore. So I repost my multi udc patch. > > > > > > Even if the usb gadget framework is limited to work with one driver, it > > could be useful to have a kernel build with more than driver. > > This allow to make generic kernel that work with different udc controller. > > > > After looking at the current code, the only blocker to do that is > > usb_gadget_register_driver/usb_gadget_unregister_driver function that > > are declared in each driver. > > > > For avoiding that I propose to do a redirection for these functions. > > At probe time the driver register them > > (usb_gadget_register/usb_gadget_unregister), and > > usb_gadget_register_driver/usb_gadget_unregister_driver call these callback. > > We pass pass struct *usb_gadget in > > usb_gadget_register/usb_gadget_unregister for flexibility (we can latter > > do a more complex dispatcher). > > > > the implementation is provided in multi_udc_core.diff. > > > > The driver conversion is quite easy and we don't need to port all the > > driver at one time. > > > > multi_udc_driver.diff is port for ci13xxx_udc.c and net2280.c It's okay with me. Assuming you make the appropriate changes in all the other UDCs, of course. Alan Stern -- 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
