Difference between revisions of "Beaglebone black i2c"
From Teknologisk videncenter
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=I2C device drivers= | =I2C device drivers= | ||
| + | *[https://www.kernel.org/doc/html/next/i2c/dev-interface.html Implementing I2C device drivers in userspace] (From kernel.org) | ||
*[https://www.kernel.org/doc/Documentation/i2c/dev-interface i2c dev-interface] (Must read i2c or SM-bus) | *[https://www.kernel.org/doc/Documentation/i2c/dev-interface i2c dev-interface] (Must read i2c or SM-bus) | ||
*[https://www.kernel.org/doc/html/latest/i2c/writing-clients.html Implementing I2C device drivers] | *[https://www.kernel.org/doc/html/latest/i2c/writing-clients.html Implementing I2C device drivers] | ||
[[Category:Beagleboard Black]][[Category:i2c]][[Category:Linux]] | [[Category:Beagleboard Black]][[Category:i2c]][[Category:Linux]] | ||
Revision as of 05:46, 25 May 2023
Detect i2c devices
Use with a little care - read the i2cdetect man page
root@beaglebone:/home/debian/bin# i2cdetect -y -r 2
0 1 2 3 4 5 6 7 8 9 a b c d e f
00: -- -- -- -- -- -- -- -- -- -- -- -- --
10: -- -- -- -- -- -- -- -- 18 -- -- -- -- -- -- --
20: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
30: -- -- -- -- -- -- -- -- -- -- -- -- 3c -- -- --
40: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
50: -- -- -- -- UU UU UU UU -- -- -- -- -- -- -- --
60: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
70: -- -- -- -- -- -- -- --
- --" Means no answer on probe
- "UU" Means probing was skipped, because a device driver uses the address
- "Number" - A n i2c device was found
I2C device drivers
- Implementing I2C device drivers in userspace (From kernel.org)
- i2c dev-interface (Must read i2c or SM-bus)
- Implementing I2C device drivers