From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-pj1-x1043.google.com (mail-pj1-x1043.google.com [IPv6:2607:f8b0:4864:20::1043]) by gabe.freedesktop.org (Postfix) with ESMTPS id DE4B96EA52 for ; Thu, 7 May 2020 19:10:12 +0000 (UTC) Received: by mail-pj1-x1043.google.com with SMTP id hi11so3062363pjb.3 for ; Thu, 07 May 2020 12:10:12 -0700 (PDT) From: Juha-Pekka Heikkila Date: Thu, 7 May 2020 22:09:41 +0300 Message-Id: <20200507190944.19520-5-juhapekka.heikkila@gmail.com> In-Reply-To: <20200507190944.19520-1-juhapekka.heikkila@gmail.com> References: <20200507190944.19520-1-juhapekka.heikkila@gmail.com> MIME-Version: 1.0 Subject: [igt-dev] [PATCH i-g-t 4/7] lib/params: add igt_params_open() which will return path List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Errors-To: igt-dev-bounces@lists.freedesktop.org Sender: "igt-dev" To: igt-dev@lists.freedesktop.org Cc: Jani Nikula , Petri Latvala List-ID: From: Jani Nikula Signed-off-by: Juha-Pekka Heikkila Reviewed-by: Petri Latvala --- lib/igt_params.c | 29 ++++++++++++++++++----------- 1 file changed, 18 insertions(+), 11 deletions(-) diff --git a/lib/igt_params.c b/lib/igt_params.c index b5ac1266..fe4b1df3 100644 --- a/lib/igt_params.c +++ b/lib/igt_params.c @@ -107,17 +107,7 @@ static void igt_params_save(int dir, const char *path, const char *name) module_params = data; } -/** - * igt_params_open: - * @device: fd of the device - * - * This opens the module parameters directory (under sysfs) corresponding - * to the device for use with igt_sysfs_set() and igt_sysfs_get(). - * - * Returns: - * The directory fd, or -1 on failure. - */ -int igt_params_open(int device) +static int __igt_params_open(int device, char **outpath) { int dir, params = -1; @@ -141,11 +131,28 @@ int igt_params_open(int device) sprintf(path, "/sys/module/%s/parameters", name); params = open(path, O_RDONLY); + if (params >= 0 && outpath) + *outpath = strdup(path); } return params; } +/** + * igt_params_open: + * @device: fd of the device + * + * This opens the module parameters directory (under sysfs) corresponding + * to the device for use with igt_sysfs_set() and igt_sysfs_get(). + * + * Returns: + * The directory fd, or -1 on failure. + */ +int igt_params_open(int device) +{ + return __igt_params_open(device, NULL); +} + /** * igt_params_set: * @device: fd of the device -- 2.26.0 _______________________________________________ igt-dev mailing list igt-dev@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/igt-dev