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From devnull@lkml.org Tue May 21 05:14:34 2024 >From spaans Fri May 8 15:33:39 2015 Received: from pop.ziggo.nl [212.54.42.19] by squeeze.vs19.net with POP3 (fetchmail-6.3.21) for (single-drop); Fri, 08 May 2015 15:33:39 +0200 (CEST) Received: from md4.tb.mail.iss.local ([212.54.34.151]) by mc5.tb.mail.iss.local (Dovecot) with LMTP id AYXaGRq5TFXicwAAh0Kp1A for ; Fri, 08 May 2015 15:31:33 +0200 Received: from mx23.gn.mail.iss.as9143.net ([212.54.34.151]) by md4.tb.mail.iss.local (Dovecot) with LMTP id z0RqDWUoLVWwEwAAkz+7wA ; Fri, 08 May 2015 15:32:05 +0200 Received: from vger.kernel.org ([209.132.180.67]) by mx23.gn.mail.iss.as9143.net with esmtp (Exim 4.82) (envelope-from ) id 1YqiNJ-0000di-2X for bmw12-lkml@ziggo.nl; Fri, 08 May 2015 15:31:33 +0200 Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753535AbbEHNb3 (ORCPT ); Fri, 8 May 2015 09:31:29 -0400 Received: from mga01.intel.com ([192.55.52.88]:25657 "EHLO mga01.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752166AbbEHNbZ (ORCPT ); Fri, 8 May 2015 09:31:25 -0400 Received: from fmsmga001.fm.intel.com ([10.253.24.23]) by fmsmga101.fm.intel.com with ESMTP; 08 May 2015 06:31:21 -0700 X-ExtLoop1: 1 X-Ironport-AV: E=Sophos;i="5.13,391,1427785200"; d="scan'208";a="707280384" Received: from dbaluta.rb.intel.com ([10.237.104.107]) by fmsmga001.fm.intel.com with ESMTP; 08 May 2015 06:31:19 -0700 From: Daniel Baluta To: jic23@kernel.org Cc: lars@metafoo.de, jlbec@evilplan.org, knaack.h@gmx.de, linux-kernel@vger.kernel.org, linux-iio@vger.kernel.org, octavian.purdila@intel.com, pebolle@tiscali.nl, patrick.porlan@intel.com, adriana.reus@intel.com, constantin.musca@intel.com, marten@intuitivea Subject: [PATCH v6 0/4] Add initial configfs support for IIO Date: Fri, 8 May 2015 16:33:41 +0300 Message-Id: <1431092025-14355-1-git-send-email-daniel.baluta@intel.com> X-Mailer: git-send-email 1.9.1 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-Id: X-Mailing-List: linux-kernel@vger.kernel.org X-Ziggo-spamsetting: Instelling=Gemiddeld Scorelimiet=14 X-Ziggo-spambar: / X-Ziggo-spamscore: 0.0 X-Ziggo-spamreport: CMAE Analysis: v=2.1 cv=YfQRnVlf c=1 sm=0 tr=0 a=UK1r566ZdBxH71SXbqIOeA==:17 a=QyXUC8HyAAAA:8 a=VwQbUJbxAAAA:8 a=cIF5Tx0qAAAA:8 a=h1PgugrvaO0A:10 a=W0vUJOdyAAAA:8 a=LO_GleUpfIzmrp1WmegA:9 a=PBTehlDefKPic8e4:21 a=NDnELdo1h3fFa42u:21 a=x8gzFH9gYPwA:10 xcat X-Ziggo-Spam-Status: No X-Spam-Status: No X-Spam-Flag: No This patchset introduces IIO software triggers, offers a way of configuring them via configfs and adds the IIO hrtimer based interrupt source to be used with software triggers. The arhitecture is now split in 3 parts, to remove all IIO trigger specific parts from IIO configfs core: (1) IIO software triggers - are independent of configfs. (2) IIO configfs - offers a generic way of creating IIO objects. So far we can create software triggers. (3) IIO hrtimer trigger - is the first interrupt source for software triggers (with syfs to follow). Each trigger type can implement its own set of attributes. Changes since v5: (after Lars comments) * the most important change is that we moved sampling_frequency attribute from configfs to trigger's directory in /sys. * couple of const added to strings * documentation to public API in sw_trigger.h * replace pr_err with WARN_ONCE in trigger_make_group to avoid spamming kernel log, but without leaving user clueless in case of errors. * we still need to decide if we get a real gain by adding min/max limits for sampling frequency in /config dir. Anyhow, this can be done in a later patch. * fix race in hrtimer_remove Changes since v4: * patch 1/4 - fixed "new line" nit in industrialio-sw-trigger.c - added license header in sw_trigger.ho * patch 2/4 - none * patch 3/4 - none * patch 4/4 - removed "Further work" chapter in iio_configfs.txt - added configfs-iio file in Documentation/ABI/testing Daniel Baluta (4): iio: core: Introduce IIO software triggers iio: core: Introduce IIO configfs support iio: trigger: Introduce IIO hrtimer based trigger iio: Documentation: Add IIO configfs documentation Documentation/ABI/testing/configfs-iio | 20 ++++ Documentation/iio/iio_configfs.txt | 58 ++++++++++ drivers/iio/Kconfig | 16 +++ drivers/iio/Makefile | 2 + drivers/iio/industrialio-configfs.c | 117 ++++++++++++++++++++ drivers/iio/industrialio-sw-trigger.c | 115 +++++++++++++++++++ drivers/iio/trigger/Kconfig | 10 ++ drivers/iio/trigger/Makefile | 2 + drivers/iio/trigger/iio-trig-hrtimer.c | 194 +++++++++++++++++++++++++++++++++ include/linux/iio/sw_trigger.h | 85 +++++++++++++++ 10 files changed, 619 insertions(+) create mode 100644 Documentation/ABI/testing/configfs-iio create mode 100644 Documentation/iio/iio_configfs.txt create mode 100644 drivers/iio/industrialio-configfs.c create mode 100644 drivers/iio/industrialio-sw-trigger.c create mode 100644 drivers/iio/trigger/iio-trig-hrtimer.c create mode 100644 include/linux/iio/sw_trigger.h -- 1.9.1 -- 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/