Warning: Unsupported flag "--"!
Syntax for I2C-like access:
  isadump [OPTIONS] [-k V1,V2...] ADDRREG DATAREG [BANK [BANKREG]]
Syntax for flat address space:
  isadump -f [OPTIONS] ADDRESS [RANGE [BANK [BANKREG]]]
Options:
  -k	Super-I/O configuration access key
  -f	Enable flat address space mode
  -y	Assume affirmative answer to all questions
  -W	Read and display word (16-bit) values
  -L	Read and display long (32-bit) values