fxload -VERSION (return code: 0)
Jun 3 2010 (development)
fxload --help (return code: 255)
fxload: invalid option -- '-'
usage: fxload [-vV] [-l] [-t type] [-D devpath]
[-I firmware_hexfile] [-s loader] [-c config_byte]
[-L link] [-m mode]
... [-D devpath] overrides DEVNAME= and DEVICE= in env
... device types: one of an21, fx, fx2, fx2lp
... at least one of -I, -L, -m is required