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); //
}
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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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