# WP7702 no I2C addresses

**URL:** <https://mangoh.discourse.group/t/wp7702-no-i2c-addresses/1874>\
**Category:** mangOH Red\
**Created:** [August 31, 2018, 7:13am UTC](https://mangoh.discourse.group/t/wp7702-no-i2c-addresses/1874 "2018-08-31T07:13:06Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![TheGod](https://sea2.discourse-cdn.com/flex016/user_avatar/mangoh.discourse.group/thegod/32/504_2.png) [@TheGod](https://mangoh.discourse.group/u/TheGod)\
**Post date:** [August 31, 2018, 7:13am UTC](https://mangoh.discourse.group/t/wp7702-no-i2c-addresses/1874/1 "2018-08-31T07:13:06Z")

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Hi,  
I use mangOH red with processor WP8548 and I do not have issues with I2C line. One of our customers reported problem with I2C line. He also uses mangOH red but with processor WP7702. His unit does not detect I2C addresses. He has got latest firmware installed 18.06.3. Can someone tell me what is wrong with the unit?

![image](https://us1.discourse-cdn.com/flex016/uploads/mangoh/original/1X/7fb8cc5c41c0b24661484c04991e3cefe44f85c9.jpeg)

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**Author:** ![Jay](https://sea2.discourse-cdn.com/flex016/user_avatar/mangoh.discourse.group/jay/32/46_2.png) [@Jay](https://mangoh.discourse.group/u/Jay)\
**Post date:** [August 31, 2018, 9:06am UTC](https://mangoh.discourse.group/t/wp7702-no-i2c-addresses/1874/2 "2018-08-31T09:06:20Z")

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You are not running the commands from embedded Linux but from PC (SMBus PIIX4 is a PC bus).  
The answer of “i2cdetect -l” on WP76xx is:  
`# i2cdetect -l`  
`i2c-4 i2c MSM-I2C-v2-adapter I2C adapter`

It should be similar on WP77xx.

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<div class="post-metadata">

**Author:** ![TheGod](https://sea2.discourse-cdn.com/flex016/user_avatar/mangoh.discourse.group/thegod/32/504_2.png) [@TheGod](https://mangoh.discourse.group/u/TheGod)\
**Post date:** [August 31, 2018, 9:30am UTC](https://mangoh.discourse.group/t/wp7702-no-i2c-addresses/1874/3 "2018-08-31T09:30:54Z")

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Obviously! I have not paid attention for this. Thanks Jay.
