Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1758294Ab2FZHBM (ORCPT ); Tue, 26 Jun 2012 03:01:12 -0400 Received: from mail-fa0-f74.google.com ([209.85.161.74]:52336 "EHLO mail-fa0-f74.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1757142Ab2FZG5U (ORCPT ); Tue, 26 Jun 2012 02:57:20 -0400 From: Daniel Kurtz To: Dmitry Torokhov , Henrik Rydberg , Joonyoung Shim , Nick Dyer , linux-input@vger.kernel.org Cc: Iiro Valkonen , Benson Leung , Yufeng Shen , Olof Johansson , linux-kernel@vger.kernel.org, Daniel Kurtz Subject: [PATCH 08/21 v5] Input: atmel_mxt_ts - print less overhead when dumping objects Date: Tue, 26 Jun 2012 14:56:56 +0800 Message-Id: <1340693829-18665-9-git-send-email-djkurtz@chromium.org> X-Mailer: git-send-email 1.7.7.3 In-Reply-To: <1340693829-18665-1-git-send-email-djkurtz@chromium.org> References: <1340693829-18665-1-git-send-email-djkurtz@chromium.org> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1436 Lines: 41 Conserve limited (PAGE_SIZE) sysfs output buffer space by only showing readable objects and not printing the object's index, which is not useful to userspace. Signed-off-by: Daniel Kurtz --- drivers/input/touchscreen/atmel_mxt_ts.c | 12 ++++-------- 1 files changed, 4 insertions(+), 8 deletions(-) diff --git a/drivers/input/touchscreen/atmel_mxt_ts.c b/drivers/input/touchscreen/atmel_mxt_ts.c index 94dd1d1..c8cfd7b 100644 --- a/drivers/input/touchscreen/atmel_mxt_ts.c +++ b/drivers/input/touchscreen/atmel_mxt_ts.c @@ -897,15 +897,11 @@ static ssize_t mxt_object_show(struct device *dev, for (i = 0; i < data->info.object_num; i++) { object = data->object_table + i; - count += scnprintf(buf + count, PAGE_SIZE - count, - "Object[%d] (Type %d)\n", - i + 1, object->type); - - if (!mxt_object_readable(object->type)) { - count += scnprintf(buf + count, PAGE_SIZE - count, - "\n"); + if (!mxt_object_readable(object->type)) continue; - } + + count += scnprintf(buf + count, PAGE_SIZE - count, + "T%u:\n", object->type); error = __mxt_read_reg(data->client, object->start_address, object->size + 1, obuf); -- 1.7.7.3 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/