On 14.05.2013 21:00, krishna2pra...@gmail.com wrote:
  # first, open the file as a plain binary
  try:
      self.file = open(/dev/relpcfpga, "r+b", buffering=0)

Aren't you missing the quotes for "/dev/relpcfpga"?

The method seek() complains "OSError: [Errno 29] Illegal seek"
The device relpcfpga is a char device.

Are you sure that your device is seekable?
Try

f = open("/dev/relpcfpga", "r+b", buffering=0)
print(f.seekable())

Bye, Andreas
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