On 05/03/2016 05:04 AM, changbin.du@xxxxxxxxx wrote: > From: "Du, Changbin" <changbin.du@xxxxxxxxx> > > On most platforms, there is only one device controller available. > In this case, we desn't care the UDC's name. So let's ignore the > name by setting 'UDC' to 'any'. Hmm libubsgx allows to do this for a very long time. You simply pass NULL instead of pointer to usbg_udc. It is also possible to do this from command line, just simply: $ echo `ls -1 /sys/class/udc | head -n 1` > UDC So if we can easily do this from user space what's the benefit of adding this special "any" keyword to kernel? > And also we can change UDC name > at any time if it is not binded (no need set to "" first). > Not sure if: $ echo "" > UDC is really a problem. Personally I'm quite used to situation in which I have to turn the light off before turning it on once again;) Cheers, -- Krzysztof Opasiak Samsung R&D Institute Poland Samsung Electronics -- 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
