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authorJakub Kicinski <kuba@kernel.org>2022-01-05 14:36:10 -0800
committerJakub Kicinski <kuba@kernel.org>2022-01-05 14:36:10 -0800
commitb9adba350a841e8233d3e4d8d3c8dede3fc88c46 (patch)
tree2fbaa3fb25cf76d44a510e0c4f96c02622e268f9 /Documentation
parent4e4f325a0a55907b14f579e6b1a38c53755e3de2 (diff)
parent75acfdb6fd922598a408a0d864486aeb167c1a97 (diff)
Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
No conflicts. Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'Documentation')
-rw-r--r--Documentation/i2c/summary.rst8
1 files changed, 5 insertions, 3 deletions
diff --git a/Documentation/i2c/summary.rst b/Documentation/i2c/summary.rst
index 136c4e333be7..786c618ba3be 100644
--- a/Documentation/i2c/summary.rst
+++ b/Documentation/i2c/summary.rst
@@ -11,9 +11,11 @@ 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 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.
+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>`_.
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