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authorWolfram Sang <wsa+renesas@sang-engineering.com>2024-06-21 10:30:09 +0300
committerWolfram Sang <wsa+renesas@sang-engineering.com>2024-06-22 11:11:45 +0300
commit75d148c90a34b94a3e3e7e7b2f30a689d8fbb7c8 (patch)
tree6241fb18611d85b051601d1ecaa86d3266dc4252 /Documentation/i2c
parentd18b822c8f622ed37af7130088a0b7f1eb0b16e6 (diff)
downloadlinux-75d148c90a34b94a3e3e7e7b2f30a689d8fbb7c8.tar.xz
docs: i2c: summary: update I2C specification link
Luckily, the specs are directly downloadable again, so update the link. Also update its title to the original name "I²C". Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com> Reviewed-by: Easwar Hariharan <eahariha@linux.microsoft.com> Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Diffstat (limited to 'Documentation/i2c')
-rw-r--r--Documentation/i2c/summary.rst8
1 files changed, 3 insertions, 5 deletions
diff --git a/Documentation/i2c/summary.rst b/Documentation/i2c/summary.rst
index 28ff80a2302b..e3ab1d414014 100644
--- a/Documentation/i2c/summary.rst
+++ b/Documentation/i2c/summary.rst
@@ -11,11 +11,9 @@ systems. Some systems use variants that don't meet branding requirements,
and so are not advertised as being I2C but come under different names,
e.g. TWI (Two Wire Interface), IIC.
-The latest official I2C specification is the `"I2C-bus specification and user
-manual" (UM10204) <https://www.nxp.com/webapp/Download?colCode=UM10204>`_
-published by NXP Semiconductors. However, you need to log-in to the site to
-access the PDF. An older version of the specification (revision 6) is archived
-`here <https://web.archive.org/web/20210813122132/https://www.nxp.com/docs/en/user-guide/UM10204.pdf>`_.
+The latest official I2C specification is the `"I²C-bus specification and user
+manual" (UM10204) <https://www.nxp.com/docs/en/user-guide/UM10204.pdf>`_
+published by NXP Semiconductors, version 7 as of this writing.
SMBus (System Management Bus) is based on the I2C protocol, and is mostly
a subset of I2C protocols and signaling. Many I2C devices will work on an