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fivdi / i2c-bus

I2C serial bus access with Node.js
MIT License
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Error: EIO, Input/output error #120

Closed nbgooch closed 11 months ago

nbgooch commented 11 months ago

Can someone please help me with this issue.

My device is visible over i2c-1

nbgooch@raspberrypi:~/code/diskdoctor/packages/backend $ sudo i2cdetect -y 1
     0  1  2  3  4  5  6  7  8  9  a  b  c  d  e  f
00:                         -- -- -- -- -- -- -- -- 
10: -- -- -- -- -- -- -- -- -- -- -- -- 1c -- -- -- 
20: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 
30: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 
40: -- -- 42 -- -- -- -- -- -- -- -- -- -- -- -- -- 
50: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 
60: -- -- -- -- -- -- -- -- -- -- 6a -- -- -- -- -- 
70: -- -- -- -- -- -- -- 77

but if I try 

      this.wire = i2c.openSync(1);
      console.log(`Scanned: ${this.wire.scanSync()}`);
      console.log(`Device: ${this.wire.deviceIdSync(0x1C)}`);

I get 

Scanned: 28,66,106,119
Failed to create accelerometer Error: EIO, Input/output error

I tried a few other libs and I am worried it is a permissions error, but would love some help.

fivdi commented 11 months ago

The issue you are seeing here may be the same as or similar to #76.

deviceId will only work if the I2C device supports it. For further information please take a look at the datasheet for the I2C device in question. Devices are not required to support deviceId. Does your device support deviceId?

nbgooch commented 11 months ago

Yes agreed found that post after creating this issue. Seems like deviceId is not supported on LSM6DSL, but not sure how to confirm. Thanks for the quick response.