From mboxrd@z Thu Jan 1 00:00:00 1970 From: Linus Walleij Subject: Re: [RFC/PATCH 0/2] u_char.c and mtp.c patches Date: Mon, 19 Apr 2010 21:23:46 +0200 Message-ID: References: <1268123742-22968-1-git-send-email-felipe.balbi@nokia.com> <20100419162611.GA15131@nokia.com> Mime-Version: 1.0 Return-path: DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:mime-version:received:in-reply-to:references :date:received:message-id:subject:from:to:cc:content-type; bh=1dwNQH0mjkKuU4MhrrlMDfiShDJvtQfkBRgw3UjKUz8=; b=JNTFzpLRIrVHgruH12fLLk6EA5lMCg0OFrVb7rGlr1WZl9fQAIzB12TK8Zd7/jv+Ph UsROsbD3wWEv44RN6q3l3f3PuOKep+dNGX4Db6RwbeTTF7S76zgFTmKNHEy/VQNsN+Mz YcNpYEjtnKTBFR0IPEuDhDFtwijDNk/YTKwhU= In-Reply-To: <20100419162611.GA15131-xNZwKgViW5gAvxtiuMwx3w@public.gmane.org> Sender: linux-usb-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org List-ID: Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: felipe.balbi-xNZwKgViW5gAvxtiuMwx3w@public.gmane.org Cc: Linux USB Mailing List , "Krogerus Heikki (EXT-Teleca/Helsinki)" , "Quadros Roger (Nokia-D/Helsinki)" , "Kaliuta Yauheni (Nokia-D/Helsinki)" , "Mandy Arnaud.2 (EXT-Teleca/Helsinki)" , Greg KH , David Brownell , linux-embedded , Tim Bird , "libmtp-discuss-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org" 2010/4/19 Felipe Balbi : >> 2010/4/18 Linus Walleij : >> Further comments: there is apparently a driver floating around this list >> for supporting PTP through the gadgetfs. How does this work relate >> to that, and why can't you use gadgetfs? > > dude, can't you read ? gadgetfs prevents us from combining into a composite > gadget. We went throught that already. Please follow the thread before > commenting. Yeah sorry, I'm trying to catch up and miss some pieces here and there. I'm mainly reading it from the MTP side of things. >> Second: after looking at this, I think that atleast the part of >> functionality >> called "OS descriptor" should be in the kernel and not in userspace, >> is the OS descriptor the reason to why you want to expose EP0 to >> userspace, or are you using this for other things in the MTP stack? > > OS descriptor is MS specific crap, it's not on the USB-IF mtp spec and most > like MS has some patent on that. ...so I read you like it's not going to be supported with the proposed solution? I think that if you want you gadget to work with older Windowses, you simply have to support this. Linus Walleij -- 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