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Message-Id: <1517236305-4880-5-git-send-email-oleksandrs@mellanox.com>
Date: Mon, 29 Jan 2018 16:31:45 +0200
From: Oleksandr Shamray <oleksandrs@...lanox.com>
To: gregkh@...uxfoundation.org, arnd@...db.de
Cc: linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
devicetree@...r.kernel.org, openbmc@...ts.ozlabs.org,
joel@....id.au, jiri@...nulli.us, tklauser@...tanz.ch,
linux-serial@...r.kernel.org, vadimp@...lanox.com,
system-sw-low-level@...lanox.com, robh+dt@...nel.org,
openocd-devel-owner@...ts.sourceforge.net,
linux-api@...r.kernel.org, davem@...emloft.net, mchehab@...nel.org,
Oleksandr Shamray <oleksandrs@...lanox.com>
Subject: [patch v18 4/4] Documentation: jtag: Add ABI documentation
Added document that describe the ABI for JTAG class drivrer
Signed-off-by: Oleksandr Shamray <oleksandrs@...lanox.com>
Acked-by: Arnd Bergmann <arnd@...db.de>
---
v17->v18
v16->v17
v15->v16
v14->v15
v13->v14
v12->v13
v11->v12
Tobias Klauser <tklauser@...tanz.ch>
- 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 <pavel@....cz>
- 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..9db83ea
--- /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@...lanox.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]<linux/jtag.h>.
+
+ 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]<linux/jtag.h>
+ for descriptions of all ioctls.
+
+ close(2)
+ Stops and free up the I/O contexts that was associated
+ with the file descriptor.
+
+Users: TBD
--
1.7.1
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