From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 52CBBCDB47E for ; Fri, 13 Oct 2023 14:54:45 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229879AbjJMOyp (ORCPT ); Fri, 13 Oct 2023 10:54:45 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:53672 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229937AbjJMOyo (ORCPT ); Fri, 13 Oct 2023 10:54:44 -0400 Received: from mail.tuxedocomputers.com (mail.tuxedocomputers.com [157.90.84.7]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 4B88ABE; Fri, 13 Oct 2023 07:54:42 -0700 (PDT) Received: from [10.6.0.9] (host-88-217-226-44.customer.m-online.net [88.217.226.44]) (Authenticated sender: wse@tuxedocomputers.com) by mail.tuxedocomputers.com (Postfix) with ESMTPSA id 2E6502FC0052; Fri, 13 Oct 2023 16:54:39 +0200 (CEST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=tuxedocomputers.com; s=default; t=1697208880; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=YUgetVycmc11Sy23hS1geccFjAg3uLc1PoJalbYEo1A=; b=J8AgwRiWLaST6rVU1SVH02DPcyjEHDLQmnv1X7wYEohahPt5H29XeiEg3p1zW4epN/5lA8 38a2KpVUTqkiQTDFKHGdAXklNOvFXvojESrGFHqYNsqVMyrHokFyjBYqNsvqnsY9gBUm0j jJVGg9wR/zr874sLYF/SRnmHAmoTv9g= Authentication-Results: mail.tuxedocomputers.com; auth=pass smtp.auth=wse@tuxedocomputers.com smtp.mailfrom=wse@tuxedocomputers.com Message-ID: Date: Fri, 13 Oct 2023 16:54:38 +0200 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Implement per-key keyboard backlight as auxdisplay? Content-Language: en-US To: Pavel Machek , ojeda@kernel.org Cc: Lee Jones , linux-kernel@vger.kernel.org, linux-leds@vger.kernel.org, linux-input@vger.kernel.org, "dri-devel@lists.freedesktop.org" References: <20231011190017.1230898-1-wse@tuxedocomputers.com> <0440ed38-c53b-4aa1-8899-969e5193cfef@tuxedocomputers.com> From: Werner Sembach In-Reply-To: Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit Precedence: bulk List-ID: X-Mailing-List: linux-leds@vger.kernel.org Hi, coming from the leds mailing list I'm writing with Pavel how to best handle per-key RGB keyboards. His suggestion was that it could be implemented as an aux display, but he also suggested that I ask first if this fits. The specific keyboard RGB controller I want to implement takes 6*21 rgb values. However not every one is actually mapped to a physical key. e.g. the bottom row needs less entries because of the space bar. Additionally the keys are ofc not in a straight line from top to bottom. Best regards, Werner