CODEWITHSUNDEEP
linuxembedded-linuxi2c
Moh3N
Moh3N

Reputation: 75

Invalid argument error when I want to instantiate i2c device in linux

I have an RTC chip on my board that I want to add it to linux as i2c device. I have an script that runs at startup of my embedded linux and in it I have this line :

echo ds1337 0x68 > /sys/bus/i2c/devices/i2c-3/new_device

sometimes it works, but sometimes it gives an error :

root@t1042d4rdb:~# echo ds1337 0x68 > /sys/bus/i2c/devices/i2c-3/new_device
-sh: echo: write error: Invalid argument

how I can fix this unstablity ?

Upvotes: 1

Views: 630

Answers (1)

WillyW
WillyW

Reputation: 1

After sending the command after boot for the first time you will see that it throws this error when you try to send it again.

Upvotes: 0

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