Hello, is anybody experienced using devices under linux from ROOT/CINT. I started with the follwing macro: (The device exists and an insmod driver is running). // aIOTest.C { gROOT->Reset(); #include <ioctls.h> // this is o.k. #include <ioctl-types.h> // this is o.k. #include <linux/ioctl.h> // this is o.k. #include <linux/kernel.h> // this is o.k. #include <stdio.h> // this is o.k. #include <stdlib.h> // this is o.k. #include <fcntl.h> // this is o.k. #include <unistd.h> // this is o.k. //#include <fcntlbits.h> // +P/-p message appears , can't use this //fortunately, here only need the following definition #define O_RDWR 02 Int_t fd = open("/dev/despex",O_RDWR); // device exists, user has permission Int_t error = ioctl(fd, _IO('k', 3), 0); // } ******************************************* * * * W E L C O M E to R O O T * * * * Version 2.21/01 14 January 1999 * * * * You are welcome to visit our Web site * * http://root.cern.ch * * * ******************************************* FreeType Engine v1.1 used to render TrueType fonts. CINT/ROOT C/C++ Interpreter version 5.13.83, Dec 2 1998 Type ? for help. Commands must be C++ statements. Enclose multiple statements between { }. root [0] .x aIOTest.C Error: No symbol open("/dev/despex",O_RDWR) in current scope FILE:/home/xray/cc/despex/learn9908/macros/./aIOTest.C LINE:30 *** Interpreter error recovered *** thanks for your help Dirk
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