From mboxrd@z Thu Jan 1 00:00:00 1970 From: Mike Murphy Subject: Re: [PATCH] input: xpad.c - Xbox 360 wireless and sysfs support Date: Mon, 16 Feb 2009 14:30:01 -0500 Message-ID: <5aa163d00902161130r2030adb8h6eb1ec08bda92744@mail.gmail.com> References: <5aa163d00902142008g138826br80d3ea989e7af691@mail.gmail.com> <200902160931.34771.oliver@neukum.org> <5aa163d00902160522r3a22412je3f5202076f57a0a@mail.gmail.com> <20090216161331.GB5008@kroah.com> <5aa163d00902161009l15dae120le96436d40f998d33@mail.gmail.com> <20090216185914.GA6239@kroah.com> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <20090216185914.GA6239-U8xfFu+wG4EAvxtiuMwx3w@public.gmane.org> Sender: linux-usb-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org To: Greg KH Cc: Oliver Neukum , linux-usb-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, linux-input-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org List-Id: linux-input@vger.kernel.org On Mon, Feb 16, 2009 at 1:59 PM, Greg KH wrote: > > Put it on the logical device, as given to you. > >> I tried not to break existing functionality. Additionally, struct >> usb_xpad contains two device pointers: one to the actual USB device, >> and one to an input device (see source of the in-tree xpad.c). So I >> followed your kobject.txt documentation and samples to create a new >> object whose sole purpose in life is to expose the sysfs interface, >> without interfering with the existing device entries in the driver. >> I'm not sure I see a clean way to use a single struct device here.... > > Put it on the input device, which is what is the per-device thing. It's > much simpler than creating a new struct kobject. You can even create a > subdirectory for your attributes if you use an attribute group (which > you should be doing anyway, it's much simpler that way.) > OK, one thing I'm not clear on: is there a clean API for adding attributes to an existing struct device, or do I need to "subclass" it (the C containment and delegation approach)? This may take me a few days or a week or so, depending on how things go. It's dissertation proposal season.... > And document the attributes please. > Will do... still need to nail down what the interface should look like. > thanks, > > greg k-h > Thanks, Mike -- Mike Murphy Ph.D. Candidate and NSF Graduate Research Fellow Clemson University School of Computing 120 McAdams Hall Clemson, SC 29634-0974 USA Tel: +1 864.656.2838 Fax: +1 864.656.0145 http://cirg.cs.clemson.edu/~mamurph -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo-u79uwXL29TY76Z2rM5mHXA@public.gmane.org More majordomo info at http://vger.kernel.org/majordomo-info.html