Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S934250AbeALRIo (ORCPT + 1 other); Fri, 12 Jan 2018 12:08:44 -0500 Received: from mail-il-dmz.mellanox.com ([193.47.165.129]:53138 "EHLO mellanox.co.il" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S934198AbeALRIk (ORCPT ); Fri, 12 Jan 2018 12:08:40 -0500 From: Oleksandr Shamray To: gregkh@linuxfoundation.org, arnd@arndb.de Cc: linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, devicetree@vger.kernel.org, openbmc@lists.ozlabs.org, joel@jms.id.au, jiri@resnulli.us, tklauser@distanz.ch, linux-serial@vger.kernel.org, vadimp@mellanox.com, system-sw-low-level@mellanox.com, robh+dt@kernel.org, openocd-devel-owner@lists.sourceforge.net, linux-api@vger.kernel.org, davem@davemloft.net, mchehab@kernel.org, Oleksandr Shamray Subject: [patch v16 4/4] Documentation: jtag: Add ABI documentation Date: Fri, 12 Jan 2018 19:08:29 +0200 Message-Id: <1515776909-29894-5-git-send-email-oleksandrs@mellanox.com> X-Mailer: git-send-email 1.7.1 In-Reply-To: <1515776909-29894-1-git-send-email-oleksandrs@mellanox.com> References: <1515776909-29894-1-git-send-email-oleksandrs@mellanox.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Return-Path: Added document that describe the ABI for JTAG class drivrer Signed-off-by: Oleksandr Shamray Acked-by: Arnd Bergmann --- v15->v16 v14->v15 v13->v14 v12->v13 v11->v12 Tobias Klauser - rename /Documentation/ABI/testing/jatg-dev -> jtag-dev - Typo: s/interfase/interface v10->v11 v9->v10 Fixes added by Oleksandr: - change jtag-cdev to jtag-dev in documentation - update Kernel Version and Date in jtag-dev documentation; v8->v9 v7->v8 v6->v7 Comments pointed by Pavel Machek - Added jtag-cdev documentation to Documentation/ABI/testing folder --- Documentation/ABI/testing/jtag-dev | 27 +++++++++++++++++++++++++++ 1 files changed, 27 insertions(+), 0 deletions(-) create mode 100644 Documentation/ABI/testing/jtag-dev diff --git a/Documentation/ABI/testing/jtag-dev b/Documentation/ABI/testing/jtag-dev new file mode 100644 index 0000000..cea9552 --- /dev/null +++ b/Documentation/ABI/testing/jtag-dev @@ -0,0 +1,27 @@ +What: /dev/jtag[0-9]+ +Date: October 2017 +KernelVersion: 4.17 +Contact: oleksandrs@mellanox.com +Description: + The misc device files /dev/jtag* are the interface + between JTAG master interface and userspace. + + The ioctl(2)-based ABI is defined and documented in + [include/uapi]. + + The following file operations are supported: + + open(2) + The argument flag currently support only one access + mode O_RDWR. + + ioctl(2) + Initiate various actions. + See the inline documentation in [include/uapi] + for descriptions of all ioctls. + + close(2) + Stops and free up the I/O contexts that was associated + with the file descriptor. + +Users: TBD \ No newline at end of file -- 1.7.1