[Bug 1626] New: Can't seek i2c eeprom reads

[bugzilla-daemon at rtems.org]

https://www.rtems.org/bugzilla/show_bug.cgi?id=1626

           Summary: Can't seek i2c eeprom reads
           Product: RTEMS
           Version: 4.10
          Platform: All
        OS/Version: RTEMS
            Status: NEW
          Severity: normal
          Priority: P3
         Component: cpukit
        AssignedTo: joel.sherrill at oarcorp.com
        ReportedBy: angus.gratton at anu.edu.au


lseek() doesn't seem to work when reading an I2C EEPROM on MVME3100 (PowerPC).

To reproduce:

- Open EEPROM device
- lseek() to some other offset
- Read from EEPROM device

The read will complete as if the lseek() never occured.

Looking at the underlying i2c read functions in cpukit, I don't see any
reference to offset, so I'm guessing this is unimplemented for I2C reads.

However, it appears that it did once work (EPICS on RTEMS uses lseek() to read
NVRAM values from I2C EEPROM.)

Cheers - Angus

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