java.io.IOException: Error writing to /dev/i2c-1 at address 0×4. Got -20001.

neophob.com | 4 months ago
  1. 0

    I2C communication between a RPI and a Arduino

    neophob.com | 4 months ago
    java.io.IOException: Error writing to /dev/i2c-1 at address 0×4. Got -20001.
  2. 0

    crash yo

    GitHub | 2 years ago | mcwrenn21
    java.io.IOException: Error writing to /dev/i2c-1 at address 0x53 to address 0x2d. Got -20001.
  3. 0

    MCP23008 as Input Errors

    Google Groups | 10 months ago | Stefan Stefan
    java.io.IOException: Error reading from /dev/i2c-1 at address 0x21 to address 0x9. Got -20001.
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  5. 0

    MCP23008 as Input Errors

    Google Groups | 10 months ago | Stefan Stefan
    java.io.IOException: Error reading from /dev/i2c-1 at address 0x21 to address 0x7. Got -20001.
  6. 0

    Occasional I2C crash

    GitHub | 2 years ago | twyatt
    java.io.IOException: Error reading from /dev/i2c-1 at address 0x48 to address 0x1. Got -1.

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    Root Cause Analysis

    1. java.io.IOException

      Error writing to /dev/i2c-1 at address 0×4. Got -20001.

      at com.pi4j.io.i2c.impl.I2CDeviceImpl.write()
    2. com.pi4j.io
      I2CDeviceImpl.write
      1. com.pi4j.io.i2c.impl.I2CDeviceImpl.write(I2CDeviceImpl.java:90)
      1 frame
    3. Unknown
      I2cExample.main
      1. I2cExample.main(I2cExample.java:34)
      1 frame