The following code conveys a command to a physical file system. To use this example correctly, in the COMMAND parameter you must define a command understood by the physical file system. For the callable service, see v_ioctl (BPX1VIO/BPX4VIO) - Convey a command to a physical file system. For the data structure, see BPXYOSS — Map operating system specific information.

     MVC   COMMAND,=X’0000D302’    GETFACL command
     MVC   ARGBLEN,=F’1024’  
     CALL  BPX1VIO,
           (VNODETOK,              Input: Vnode token
            OSSSTOR,               Input/output: BPXYOSS
            COMMAND,               Input: command       
            ARGBLEN,               Input: argument length 
            ARGBUFF,               Argument buffer name 
            RETVAL,                Return value: 0 or -1
            RETCODE,               Return code
            RSNCODE),              Reason Code
            VL,MF=(E,PLIST)        -----------------------