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karantir/cheatsheet.md

Created June 14, 2016 09:49
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Using I2C on OpenWRT
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cheatsheet.md

Installing packages.

opkg update
opkg install kmod-i2c-gpio-custom i2c-tools

Loading I2C bus drivers. Using pins 7 (SDA) and 8 (SCL).

insmod i2c-dev
insmod i2c-gpio-custom bus0=0,7,8

Checking.

dmesg | grep i2c

Detecting connected devices.

i2cdetect -y 0

Examining device data.

i2cdump -y 0 0x48

Reading/writing data.

i2cget -y 0 0x48 1
i2cset -y 0 0x48 1 1
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