> Ok, so a: long character would be better, isn't it?
   
   uint32_t is better still - especially for LP64 systems!


yes, please use fixed-sized types when implementing new ioctl
API's where possible.  this helps 32bit-on-64bit immensely.
(eg, running 32bit sparc or x86 or mips or ppc programs on a
64bit kernel.)


.mrg.