Added document that describe the ABI for JTAG class drivrer Signed-off-by: Oleksandr Shamray <oleksan...@mellanox.com> Acked-by: Arnd Bergmann <a...@arndb.de> --- v12->v13 v11->v12 Tobias Klauser <tklau...@distanz.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 <pa...@ucw.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..cab867d --- /dev/null +++ b/Documentation/ABI/testing/jtag-dev @@ -0,0 +1,27 @@ +What: /dev/jtag[0-9]+ +Date: October 2017 +KernelVersion: 4.15 +Contact: oleksan...@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]<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 -- 1.7.1
