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| author | Ernesto Corona <ernesto.corona@intel.com> | 2020-09-29 18:30:13 +0300 |
|---|---|---|
| committer | Jae Hyun Yoo <jae.hyun.yoo@linux.intel.com> | 2021-11-05 10:22:08 +0300 |
| commit | ef68fb9689a2ffc7134d3717f459a1ecfe888509 (patch) | |
| tree | 5f4c6c2c60c87292d5292ff5f7e410c67f9321fc /Documentation/ABI | |
| parent | 1223c4de89fbfbade4a44416e77c0a4c75b31e65 (diff) | |
| download | linux-ef68fb9689a2ffc7134d3717f459a1ecfe888509.tar.xz | |
Documentation: jtag: Add ABI documentation
Added document that describe the ABI for JTAG class driver
Signed-off-by: Oleksandr Shamray <oleksandrs@mellanox.com>
Signed-off-by: Ernesto Corona <ernesto.corona@intel.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Cc: Linus Walleij <linus.walleij@linaro.org>
Cc: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Cc: Jeffrey Hugo <jhugo@codeaurora.org>
Cc: Steven Filary <steven.a.filary@intel.com>
Cc: Jiri Pirko <jiri@mellanox.com>
Cc: Vadim Pasternak <vadimp@mellanox.com>
Cc: Amithash Prasad <amithash@fb.com>
Cc: Patrick Williams <patrickw3@fb.com>
Cc: Rgrs <rgrs@protonmail.com>
Diffstat (limited to 'Documentation/ABI')
| -rw-r--r-- | Documentation/ABI/testing/jtag-dev | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/Documentation/ABI/testing/jtag-dev b/Documentation/ABI/testing/jtag-dev new file mode 100644 index 000000000000..423baab18761 --- /dev/null +++ b/Documentation/ABI/testing/jtag-dev @@ -0,0 +1,23 @@ +What: /dev/jtag[0-9]+ +Date: July 2018 +KernelVersion: 4.20 +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]<linux/jtag.h>. + + The following file operations are supported: + + open(2) + Opens and allocates file descriptor. + + ioctl(2) + Initiate various actions. + See the inline documentation in [include/uapi]<linux/jtag.h> + for descriptions of all ioctls. + +Users: + userspace tools which wants to access to JTAG bus |