From patchwork Tue Sep 17 22:14:07 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: James Ogletree X-Patchwork-Id: 13806479 Received: from mx0b-001ae601.pphosted.com (mx0a-001ae601.pphosted.com [67.231.149.25]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 9A74A176ACA; Tue, 17 Sep 2024 22:15:59 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=67.231.149.25 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1726611361; cv=none; b=E6zBjEYI+b2hu0zJqRuDRPFWhtmt4dYlrBL9emS7V2kn68qxq1JSWFK6b8kSyK/3O18KdOXGRo+lgBI03ye29so1Wg1w00i0PrvUcaRJnOBYf/5YFxTa1NjbcR1NCB+HUlZXvkh/Shgs0ABqHV4vPr8pTEFPJvA/mYV7/m1SRHo= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1726611361; c=relaxed/simple; bh=U2CYGTxUaPJupOKjqGxiPCQvTOzqcdal4HO3jn/PbGA=; h=From:To:CC:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=lgJ58RT/SiGWBHTLl75oy7UtneKv9V9nYZIZs0X09/4uSJQMfnLtT+7IFnsgOGjLHMujw8j/pQ8SUasgmqzc6cg7Df9MxEHs1Ygo8lSstx89BaEO3ou5WSP0tv9ObH0mEaFQx86ll74cJCaZFIrgVMnG2v1J3eMiqaZToJlv2yE= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=opensource.cirrus.com; spf=pass smtp.mailfrom=opensource.cirrus.com; dkim=pass (2048-bit key) header.d=cirrus.com header.i=@cirrus.com header.b=ezLvFGfZ; arc=none smtp.client-ip=67.231.149.25 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=opensource.cirrus.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=opensource.cirrus.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=cirrus.com header.i=@cirrus.com header.b="ezLvFGfZ" Received: from pps.filterd (m0077473.ppops.net [127.0.0.1]) by mx0a-001ae601.pphosted.com (8.18.1.2/8.18.1.2) with ESMTP id 48H5jtAT024984; Tue, 17 Sep 2024 17:15:43 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=cirrus.com; h=cc :content-transfer-encoding:content-type:date:from:in-reply-to :message-id:mime-version:references:subject:to; s= PODMain02222019; bh=9p38P5q18aNIzIGayOpW9J2z4hCzSUXeTTEplhYzGgc=; b= ezLvFGfZ8r1daQc4UJZg0WiqRzwoDYYVP97w4boHDD6S11lkJB/M8FrRrkUq3uVN m2+1kY+DHWIA4VrC5sN8o1CeRN7/u7flvbn3Cc3LxS+S388vLbqFNiwt4IxpvR98 Br4D4Ki0yKC5kPsRy5BJ8Qdo45YyVgWdJyAxpbZeBRMnWk/tTGnL9DOkYs2KAdW7 3o2ZusVFL9cFJa7gBxjPemmhcWIZNvoIhM9cHgbbzVnzsj+fpQq0tbZ3SZUzAbQC B9NInY2V1CdT9k4VB+wd7laFslWOWfmArt0wyXQDwKifcdwHZDWs05osvBfWSiLa o7StEpVVxVneTd8BL9gy8A== Received: from ediex02.ad.cirrus.com ([84.19.233.68]) by mx0a-001ae601.pphosted.com (PPS) with ESMTPS id 41n7vy498x-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Tue, 17 Sep 2024 17:15:43 -0500 (CDT) Received: from ediex01.ad.cirrus.com (198.61.84.80) by ediex02.ad.cirrus.com (198.61.84.81) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.1544.9; Tue, 17 Sep 2024 23:15:41 +0100 Received: from ediswmail9.ad.cirrus.com (198.61.86.93) by anon-ediex01.ad.cirrus.com (198.61.84.80) with Microsoft SMTP Server id 15.2.1544.9 via Frontend Transport; Tue, 17 Sep 2024 23:15:41 +0100 Received: from aus-sw-rshr002.ad.cirrus.com (aus-sw-rshr002.ad.cirrus.com [141.131.145.15]) by ediswmail9.ad.cirrus.com (Postfix) with ESMTP id CE3AD820244; Tue, 17 Sep 2024 22:15:39 +0000 (UTC) From: James Ogletree To: , , CC: , , , , James Ogletree Subject: [RFC PATCH 1/6] Input: Add variable to track maximum concurrent playbacks Date: Tue, 17 Sep 2024 22:14:07 +0000 Message-ID: <20240917221412.1003718-2-jogletre@opensource.cirrus.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20240917221412.1003718-1-jogletre@opensource.cirrus.com> References: <20240917221412.1003718-1-jogletre@opensource.cirrus.com> Precedence: bulk X-Mailing-List: linux-usb@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Proofpoint-ORIG-GUID: 3aogr52BPCsQWa5YmJW-rXyVpi2ZZLRn X-Proofpoint-GUID: 3aogr52BPCsQWa5YmJW-rXyVpi2ZZLRn X-Proofpoint-Spam-Reason: safe Add max_concurrent_playbacks to ff_device which contains the maximum number of concurrent playbacks allowed by the device. Signed-off-by: James Ogletree --- drivers/input/evdev.c | 2 +- include/linux/input.h | 2 ++ 2 files changed, 3 insertions(+), 1 deletion(-) diff --git a/drivers/input/evdev.c b/drivers/input/evdev.c index a8ce3d140722..42b55e03696b 100644 --- a/drivers/input/evdev.c +++ b/drivers/input/evdev.c @@ -1069,7 +1069,7 @@ static long evdev_do_ioctl(struct file *file, unsigned int cmd, case EVIOCGEFFECTS: i = test_bit(EV_FF, dev->evbit) ? - dev->ff->max_effects : 0; + dev->ff->max_concurrent_playbacks : 0; if (put_user(i, ip)) return -EFAULT; return 0; diff --git a/include/linux/input.h b/include/linux/input.h index 89a0be6ee0e2..6d6e450e2231 100644 --- a/include/linux/input.h +++ b/include/linux/input.h @@ -531,6 +531,7 @@ extern const struct class input_class; * device (not emulated like ones in input_dev->ffbit) * @mutex: mutex for serializing access to the device * @max_effects: maximum number of effects supported by device + * @max_concurrent_playbacks: maximum number of concurrent playbacks * @effects: pointer to an array of effects currently loaded into device * @effect_owners: array of effect owners; when file handle owning * an effect gets closed the effect is automatically erased @@ -562,6 +563,7 @@ struct ff_device { struct mutex mutex; int max_effects; + int max_concurrent_playbacks; struct ff_effect *effects; struct file *effect_owners[] __counted_by(max_effects); };