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 X-Spam-Level: X-Spam-Status: No, score=-10.1 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 1371CC3F2D2 for ; Thu, 5 Mar 2020 17:16:44 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id C4FAB20848 for ; Thu, 5 Mar 2020 17:16:43 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1583428603; bh=OxIDXJsgioKRpwAg+0x+Vf5qgEy9TBUr+PTln/+kECM=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=KMWub6+rQD7yjTnwhaY7ZmX+FTG7pXpIbCvFjJ4EWHllysHKpxjyGHfpRp2SLH3gd A2oBLHao5SyV9VdJdUj9Kfbm7f3Wp9ZdqfFgZhBwwVl8SdUcokjzsY+bbvejeHE5Rz b/Wd2JgIshJMZzdNPVzTOc416XK8D/u/gHXawcoY= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726650AbgCERQj (ORCPT ); Thu, 5 Mar 2020 12:16:39 -0500 Received: from mail.kernel.org ([198.145.29.99]:43354 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728445AbgCERQQ (ORCPT ); Thu, 5 Mar 2020 12:16:16 -0500 Received: from sasha-vm.mshome.net (c-73-47-72-35.hsd1.nh.comcast.net [73.47.72.35]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id CBC762166E; Thu, 5 Mar 2020 17:16:14 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1583428575; bh=OxIDXJsgioKRpwAg+0x+Vf5qgEy9TBUr+PTln/+kECM=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=OI85aioCYh039ObqoKO2M39Q5OjNvaMQfYbT8g8epyOXzo0xlBVA92n1gDUagG78M Ik9SLDVzuHvYlFc30Q/e2gM5hLCJZ72Q8IbDnVhWfy2+m/E8yymrEgD6m3WT2Br5C5 uyE4XkIA+qWBUJh9A1/x6YdZ1CKpLQCuoH0qOEWg= From: Sasha Levin To: linux-kernel@vger.kernel.org, stable@vger.kernel.org Cc: Johan Korsnes , Alan Stern , Armando Visconti , Jiri Kosina , Sasha Levin , linux-input@vger.kernel.org Subject: [PATCH AUTOSEL 4.4 2/7] HID: core: increase HID report buffer size to 8KiB Date: Thu, 5 Mar 2020 12:16:07 -0500 Message-Id: <20200305171612.30555-2-sashal@kernel.org> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20200305171612.30555-1-sashal@kernel.org> References: <20200305171612.30555-1-sashal@kernel.org> MIME-Version: 1.0 X-stable: review X-Patchwork-Hint: Ignore Content-Transfer-Encoding: 8bit Sender: linux-input-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-input@vger.kernel.org From: Johan Korsnes [ Upstream commit 84a4062632462c4320704fcdf8e99e89e94c0aba ] We have a HID touch device that reports its opens and shorts test results in HID buffers of size 8184 bytes. The maximum size of the HID buffer is currently set to 4096 bytes, causing probe of this device to fail. With this patch we increase the maximum size of the HID buffer to 8192 bytes, making device probe and acquisition of said buffers succeed. Signed-off-by: Johan Korsnes Cc: Alan Stern Cc: Armando Visconti Cc: Jiri Kosina Signed-off-by: Jiri Kosina Signed-off-by: Sasha Levin --- include/linux/hid.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/include/linux/hid.h b/include/linux/hid.h index 5f31318851366..2149f650982ea 100644 --- a/include/linux/hid.h +++ b/include/linux/hid.h @@ -451,7 +451,7 @@ struct hid_report_enum { }; #define HID_MIN_BUFFER_SIZE 64 /* make sure there is at least a packet size of space */ -#define HID_MAX_BUFFER_SIZE 4096 /* 4kb */ +#define HID_MAX_BUFFER_SIZE 8192 /* 8kb */ #define HID_CONTROL_FIFO_SIZE 256 /* to init devices with >100 reports */ #define HID_OUTPUT_FIFO_SIZE 64 -- 2.20.1