CIO
#define COMEDI32_CHANINFO _IOR(CIO, 3, struct comedi32_chaninfo_struct)
#define COMEDI32_RANGEINFO _IOR(CIO, 8, struct comedi32_rangeinfo_struct)
#define COMEDI32_CMD _IOR(CIO, 9, struct comedi32_cmd_struct)
#define COMEDI32_CMDTEST _IOR(CIO, 10, struct comedi32_cmd_struct)
#define COMEDI32_INSNLIST _IOR(CIO, 11, struct comedi32_insnlist_struct)
#define COMEDI32_INSN _IOR(CIO, 12, struct comedi32_insn_struct)
#define COMEDI_DEVCONFIG _IOW(CIO, 0, struct comedi_devconfig)
#define COMEDI_DEVINFO _IOR(CIO, 1, struct comedi_devinfo)
#define COMEDI_SUBDINFO _IOR(CIO, 2, struct comedi_subdinfo)
#define COMEDI_CHANINFO _IOR(CIO, 3, struct comedi_chaninfo)
#define COMEDI_LOCK _IO(CIO, 5)
#define COMEDI_UNLOCK _IO(CIO, 6)
#define COMEDI_CANCEL _IO(CIO, 7)
#define COMEDI_RANGEINFO _IOR(CIO, 8, struct comedi_rangeinfo)
#define COMEDI_CMD _IOR(CIO, 9, struct comedi_cmd)
#define COMEDI_CMDTEST _IOR(CIO, 10, struct comedi_cmd)
#define COMEDI_INSNLIST _IOR(CIO, 11, struct comedi_insnlist)
#define COMEDI_INSN _IOR(CIO, 12, struct comedi_insn)
#define COMEDI_BUFCONFIG _IOR(CIO, 13, struct comedi_bufconfig)
#define COMEDI_BUFINFO _IOWR(CIO, 14, struct comedi_bufinfo)
#define COMEDI_POLL _IO(CIO, 15)
#define COMEDI_SETRSUBD _IO(CIO, 16)
#define COMEDI_SETWSUBD _IO(CIO, 17)