[patch v8 4/4] Documentation: jtag: Add ABI documentation
From: Oleksandr Shamray <hidden>
Date: 2017-09-08 16:14:28
Also in:
linux-api, linux-arm-kernel, linux-devicetree, lkml, openbmc
Subsystem:
the rest · Maintainer:
Linus Torvalds
Added document that describe the ABI for JTAG class drivrer Signed-off-by: Oleksandr Shamray <redacted> Acked-by: Arnd Bergmann <arnd@arndb.de> --- v7->v8 v6->v7 Comments pointed by Pavel Machek [off-list ref] - 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@mellanox.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@ladisch.de>
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1.7.1