From: Michalis Pappas Subject: How to replace control code in gdm72xx? Date: Wed, 16 Jul 2014 21:24:28 +0100 Message-ID: <53C6DF7C.8030109@fastmail.fm> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Cc: inaky-VuQAYsv1563Yd54FQh9/CA@public.gmane.org, Ben Chan To: devel-gWbeCf7V1WCQmaza687I9mD2FQJk+8+b@public.gmane.org, linux-wireless-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, netdev-u79uwXL29TY76Z2rM5mHXA@public.gmane.org Return-path: Sender: linux-wireless-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org List-Id: netdev.vger.kernel.org Hi, I'm currently working on bringing the gdm72xx WiMAX driver out of staging. The driver currently uses two control channels: 1. The SIOCDEVPRIVATE ioctl to send and receive state messages 2. A customly defined netlink protocol for passing messages verbatim to the device controller AFAIK both of the above are deprecated, so I considered switching to the interface defined in wimax.h, which defines a communication protocol over generic netlink that replaces (2) nicely. However it is not compatible with (1), as: * Except from the device status, the gdm72xx driver uses two more types of messages (connection and OMA status), which is not supported by wimax.h. * The gdm driver needs to be able to receive status messages from userspace, which is not supported by wimax.h either. I therefore consider using the wimax stack as defined in wimax.h for the netlink part, but replacing the ioctl with a file under /sys/class/net/wm0/ My questions are whether the above location would be the right place for that file, and, more importantly, whether this is a generally a valid approach and not just an ugly workaround. Thanks, Michalis -- To unsubscribe from this list: send the line "unsubscribe linux-wireless" in the body of a message to majordomo-u79uwXL29TY76Z2rM5mHXA@public.gmane.org More majordomo info at http://vger.kernel.org/majordomo-info.html