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=-16.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,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 0442DC48BE0 for ; Fri, 11 Jun 2021 05:27:13 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id DFDF9610A2 for ; Fri, 11 Jun 2021 05:27:12 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231210AbhFKF3I (ORCPT ); Fri, 11 Jun 2021 01:29:08 -0400 Received: from router.aksignal.cz ([62.44.4.214]:41514 "EHLO router.aksignal.cz" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230450AbhFKF3A (ORCPT ); Fri, 11 Jun 2021 01:29:00 -0400 Received: from localhost (localhost [127.0.0.1]) by router.aksignal.cz (Postfix) with ESMTP id 7198A44437; Fri, 11 Jun 2021 07:27:00 +0200 (CEST) X-Virus-Scanned: Debian amavisd-new at router.aksignal.cz Received: from router.aksignal.cz ([127.0.0.1]) by localhost (router.aksignal.cz [127.0.0.1]) (amavisd-new, port 10026) with LMTP id caN4VxDcJrYw; Fri, 11 Jun 2021 07:27:00 +0200 (CEST) Received: from pc-gameroom.prchals.tk (unknown [83.240.30.185]) (Authenticated sender: jiri.prchal@aksignal.cz) by router.aksignal.cz (Postfix) with ESMTPSA id 074AD44439; Fri, 11 Jun 2021 07:26:57 +0200 (CEST) From: Jiri Prchal To: devicetree@vger.kernel.org, linux-kernel@vger.kernel.org Cc: Rob Herring , Christian Eggers , Arnd Bergmann , Greg Kroah-Hartman , Jiri Prchal Subject: [PATCH v9 5/5] nvmem: eeprom: add documentation of sysfs fram and sernum file Date: Fri, 11 Jun 2021 07:26:52 +0200 Message-Id: <20210611052652.7894-6-jiri.prchal@aksignal.cz> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20210611052652.7894-1-jiri.prchal@aksignal.cz> References: <20210611052652.7894-1-jiri.prchal@aksignal.cz> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Added sysfs fram and sernum file documentation. Signed-off-by: Jiri Prchal --- v5: new v6: no change here v7: no change here v8: added fram file doc v9: rewritten description --- .../ABI/testing/sysfs-class-spi-eeprom | 20 +++++++++++++++++++ 1 file changed, 20 insertions(+) create mode 100644 Documentation/ABI/testing/sysfs-class-spi-eeprom diff --git a/Documentation/ABI/testing/sysfs-class-spi-eeprom b/Documentation/ABI/testing/sysfs-class-spi-eeprom new file mode 100644 index 000000000000..4e69c78f9f65 --- /dev/null +++ b/Documentation/ABI/testing/sysfs-class-spi-eeprom @@ -0,0 +1,20 @@ +What: /sys/class/spi_master/spi/spi./sernum +Date: May 2021 +KernelVersion: 5.14 +Contact: Jiri Prchal +Description: + Contains the serial number of the Cypress FRAM (FM25VN) if it is + present. It will be displayed as a 8 byte hex string, as read + from the device. + + This is a read-only attribute. + +What: /sys/class/spi_master/spi/spi./fram +Date: June 2021 +KernelVersion: 5.14 +Contact: Jiri Prchal +Description: + Contains the FRAM binary data. Same as EEPROM, just another file + name to indicate that it employs ferroelectric process. + It performs write operations at bus speed - no write delays, capable + of 10^14 read/write cycles and 151 years data retention. -- 2.25.1