Hi, Alan Stern <stern@xxxxxxxxxxxxxxxxxxx> writes: >> Hinko Kocevar <hinkocevar@xxxxxxxxx> writes: >> >> The way dummy was written, it can only instantiate one gadget. You >> >> either need a real USB peripheral controller, or you need to patch dummy >> >> to instantiate more than one gadget. >> >> >> >> -- >> >> balbi >> > >> > By dummy - are you referring to g_zero of dummy_hcd? >> >> Okay, we need a little more explanation. In order to have a gadget >> driver like g_zero loaded, you need a USB peripheral controller (in your >> case, that's handled by dummy). >> >> Now, when you want that g_zero to be useful, you need to plug it to a >> USB host controller (in your case, that's also handled by dummy). >> >> What I'm saying, though, is that this dummy (dummy_hcd.c) can only >> handle ONE gadget (a fake USB peripheral controller) at a time. It does >> NOT instantiate more than one of those. > > In fact, this isn't correct. See the "num" module parameter in > dummy_hcd.c (added by commit c7a1db457bfc "usb: gadget: dummy_hcd: add > setup / cleanup of multiple HW intances"). Interesting, something new to play with :-) -- balbi -- 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
