On Tue, 4 Oct 2011, Michael Hunold wrote: > Dear all, > > I'm currently using an ARM9 system called TMPA900 from Toshiba > http://www.toshiba-components.com/microcontroller/TMPA900Family.html > > Linux-supported is maintained in an out-of-tree Git repository here > http://git.labs.kernelconcepts.de/?p=topas.git;a=summary > > This SoC has an USB device controller which I want to use. > > The current driver can be found here: > http://git.labs.kernelconcepts.de/?p=topas.git;a=blob;f=drivers/usb/gadget/tmpa9xx_udc.c;h=5c5bfcc9f7b0d08f5711457aca28bfe8d98a055c;hb=HEAD ... > What to do now? I am looking for hints how to proceed. > > Especially because of observation 0, I am taking into consideration to > do a rewrite of the driver. For that, I have been looking at existing > drivers obviously, and "dummy_hcd" in particular. Is is a good idea to > take the latter and add the hardware specific parts and remove the > generic software emulation? dummy-hcd is, on the whole, not a very good model for UDC development because it doesn't control any actual hardware. Also, it contains both host- and gadget-side code, which tends to confuse things. It would be better to base a new driver on a real existing gadget driver, something where the underlying hardware is fairly close to the Toshiba controller. > Because I am in need for a better driver sooner or later, I am > considering to give this development effort away to somebody that knows > the details better than me. If you are interested in helping me out > against payment of course, please drop me a line off-list. 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
