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Message-Id: <1504887229-2748-5-git-send-email-oleksandrs@mellanox.com> Date: Fri, 8 Sep 2017 19:13:49 +0300 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, mec@...ut.net, vadimp@...llanox.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 v8 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> --- v7->v8 v6->v7 Comments pointed by Pavel Machek <pavel@....cz> - Added jtag-cdev documentation to Documentation/ABI/testing folder --- Documentation/ABI/testing/jatg-cdev | 27 +++++++++++++++++++++++++++ MAINTAINERS | 1 + 2 files changed, 28 insertions(+), 0 deletions(-) create mode 100644 Documentation/ABI/testing/jatg-cdev diff --git a/Documentation/ABI/testing/jatg-cdev b/Documentation/ABI/testing/jatg-cdev new file mode 100644 index 0000000..14a3610 --- /dev/null +++ b/Documentation/ABI/testing/jatg-cdev @@ -0,0 +1,27 @@ +What: /dev/jtag[0-9]+ +Date: September 2017 +KernelVersion: 4.14 +Contact: oleksandrs@...lanox.com +Description: + The character device files /dev/jtag* are the interface + between JTAG master interfase 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 \ No newline at end of file diff --git a/MAINTAINERS b/MAINTAINERS index bfdfa94..dfcf49c 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -7300,6 +7300,7 @@ F: include/linux/jtag.h F: include/uapi/linux/jtag.h F: drivers/jtag/ F: Documentation/devicetree/bindings/jtag/ +F: Documentation/ABI/testing/jtag-cdev K10TEMP HARDWARE MONITORING DRIVER M: Clemens Ladisch <clemens@...isch.de> -- 1.7.1
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