Re: ioctl.h

[michael young <mhyoung@valdosta.edu>]

kool
thanks guys
i think can run with the info i have

Mike

Rechberger Markus wrote:

>hey Michael,
>
>here just an example:
>
>this small tool opens the cd tray
>
>#include <sys/types.h>
>#include <sys/ioctl.h>
>#include <fcntl.h>
>#include <linux/cdrom.h>
>
>int main(){
>    int cdrom;
>    if ((cdrom = open("/dev/cdrom",O_RDONLY | O_NONBLOCK)) < 0) {
>            perror("open");
>            exit(1);
>    }
>    if (ioctl(cdrom,CDROMEJECT,0)<0) {
>            perror("ioctl");
>            exit(1);
>    }
>    close(cdrom);
>    return(0);
>}
>
>simply build it with gcc tray.c -o tray
>
>look at cdrom.h for more defined operations, you will also find
>CDROMEJECT in there, 0 is an argument see the manpage (man ioctl) for
>more infos..
>
>Markus
>
>On Fri, 04 Mar 2005 14:15:04 -0500, michael young <mhyoung@valdosta.edu> wrote:
>  
>
>>Hi,
>>how do you use the ioctl.h?
>>there seems to be little info on it
>>on the web or in print. If you know
>>of anything on the web please let me
>>know.
>>
>>thank you,
>>Mike
>>
>>-
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>>    
>>
>
>  
>