From mboxrd@z Thu Jan 1 00:00:00 1970 From: Vladimir Pantelic Subject: Re: Unifying cape overlays into boot .dtb for BeagleBoard.org boards Date: Tue, 17 Jun 2014 15:45:59 +0200 Message-ID: <53A04697.1020904@gmail.com> References: <20140617090931.GB3705@n2100.arm.linux.org.uk> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <20140617090931.GB3705-l+eeeJia6m9vn6HldHNs0ANdhmdF6hFW@public.gmane.org> Sender: devicetree-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org To: Russell King - ARM Linux , Jason Kridner Cc: "beagleboard-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org" , Robert Nelson , "devicetree-u79uwXL29TY76Z2rM5mHXA@public.gmane.org" , OMAP List , ARM Kernel List List-Id: devicetree@vger.kernel.org On 06/17/2014 11:09 AM, Russell King - ARM Linux wrote: > Here's the most obvious question in the world on this topic. Are capes > hot-pluggable? "capes" as in Beaglebone capes might not be due to the mechanical constraints you listed. "capes" as a concept of pluggable hardware might well be. here is a real world example of commercially available pluggable hardware add-ons on a Linux system back from 2008: http://en.wikipedia.org/wiki/Archos_Generation_6#Accessories depending on the add-on, different interfaces like GPIO, UART, USB, SPI using the same pins were used and there was no reboot needed to load a new hardware configuration or change the pinmux -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo-u79uwXL29TY76Z2rM5mHXA@public.gmane.org More majordomo info at http://vger.kernel.org/majordomo-info.html